All Calculators

Estimate trip fuel use and cost from distance, economy and fuel price.

Calculate gas mileage / mpg for vehicle planning and comparison.

Compare tire sizes and estimate diameter, circumference and speedometer differences.

Horsepower is a unit of power used for engines, motors and mechanical equipment.

Gear ratio compares the rotational relationship between two gears or sprockets.

Torque measures the turning effect of a force about an axis or pivot.

Power-to-weight ratio compares available power with the mass or weight of a vehicle or machine.

Fuel economy is reported differently around the world.

Estimates the amount of fuel required for a journey from distance and vehicle fuel economy.

Calculate rpm to linear speed for vehicle planning and comparison.

Calculate engine displacement for vehicle planning and comparison.

Calculate compression ratio for vehicle planning and comparison.

Wheel speed connects vehicle road speed with tire circumference.

Cost per mile turns vehicle expenses into a common distance-based measure.

Fuel range estimates how far a vehicle can travel from available fuel and expected fuel economy.

Calculate fuel injector for vehicle planning and comparison.

Engine RPM calculations connect vehicle speed, tire size and drivetrain ratios.

Estimates that difference from original and new tire diameters or circumferences.

Calculate 2-stroke fuel mix for vehicle planning and comparison.

Wheel offset is the distance between a wheel’s mounting face and its centreline.

Tracks whether a vehicle is on pace to stay within its contracted mileage allowance.

Calculate wheel horsepower for vehicle planning and comparison.

Estimates the electricity cost of adding energy to an electric vehicle battery.

Calculate ev range & cost for vehicle planning and comparison.

Converts annual, monthly or weekly pay into an hourly equivalent using the work schedule you enter.

Shows the new salary or wage after a percentage or fixed increase.

Connects cost, selling price, markup and gross margin without mixing the definitions.

Revenue only becomes profit after the relevant costs are deducted.

Before a business earns profit, contribution from sales has to cover its fixed costs.

Depreciation measures the reduction in an asset’s recorded or estimated value over time.

Payback period estimates how long it takes for an investment’s cash inflows to recover the original outlay.

Time cards turn clock-in and clock-out records into paid hours.

Is useful for weekly planning, project staffing and simple payroll checks.

Gross pay is the amount earned before taxes and payroll deductions are removed.

Overtime pay depends on both the number of premium hours and the multiplier applied to the regular rate.

Helps translate sales performance into commission earnings under the plan you enter.

Calculate hourly to salary for business planning and analysis.

Calculate profit margin for business planning and analysis.

Contribution margin shows how much sales revenue remains after variable costs are deducted.

Margin of safety measures how far actual or expected sales are above break-even sales.

Inventory turnover measures how many times inventory is sold or used and replaced over a period.

Return on ad spend measures revenue generated relative to advertising spend.

CPM measures advertising cost per one thousand impressions.

Cost per click measures how much advertising spend is being paid, on average, for each recorded click.

Conversion rate measures the share of visitors, leads or opportunities that complete a defined action.

Customer acquisition cost estimates how much sales and marketing spending is required to acquire one new customer.

Estimate direct labor expense and, where inputs are available, a more fully burdened hourly cost.

Productivity compares output with the input required to produce it.

Click-through rate measures how often people click after seeing an impression.

Average order value measures the average revenue generated per order.

Churn rate measures the share of customers, subscribers or accounts lost during a period.

Calculate retention rate for business planning and analysis.

Customer lifetime value estimates the economic value expected from a customer relationship over time.

Cash flow tracks money moving into and out of a business or project during a period.

Cost of goods sold measures the direct cost assigned to goods sold during a period.

Operating margin measures operating income as a percentage of revenue.

EBITDA margin expresses earnings before interest, taxes, depreciation and amortization as a percentage of revenue.

Inventory days estimates how many days of cost of goods sold are represented by the average inventory balance.

Burn rate measures how quickly a business is consuming cash over time.

Calculate cash runway for business planning and analysis.

Calculate employee turnover for business planning and analysis.

Calculate reorder point for business planning and analysis.

Calculate safety stock for business planning and analysis.

Revenue growth measures how much sales changed from one period to another.

Calculate economic order quantity for business planning and analysis.

Calculate accounts receivable turnover for business planning and analysis.

Days sales outstanding estimates the average number of days it takes to collect accounts receivable.

Inventory shrinkage measures the difference between recorded inventory and the physical inventory actually present.

Price elasticity of demand measures how strongly quantity demanded responds to a change in price.

Asset turnover measures how efficiently a business generates revenue from the assets it uses.

Accounts payable turnover measures how frequently a company pays its average supplier payables during a period.

Days payable outstanding estimates how many days a company takes, on average, to pay suppliers.

Calculate cash conversion cycle for business planning and analysis.

Working capital turnover measures how much revenue a business generates relative to net working capital.

Vacancy rate measures the share of rental units, space or available time that is unoccupied during a period.

Calculate revenue per employee for business planning and analysis.

Employee absence rate measures work time lost to employee absences relative to scheduled work time.

Capacity utilization measures how much of a business or production system’s available capacity is being used.

Calculate operating leverage for business planning and analysis.

Burn multiple compares net cash burn with net new recurring revenue over the same period.

Sell-through rate measures how much available inventory was sold during a period.

Calculate stockout rate for business planning and analysis.

Inventory carrying cost estimates the annual cost of holding stock beyond its purchase price.

Calculate gmroi for business planning and analysis.

Calculate break-even roas for business planning and analysis.

Estimates the labor cost of bringing people into a meeting based on attendee pay rates and meeting duration.

Calculate freelance hourly rate for business planning and analysis.

Billable utilization measures the share of available working time that is billed to clients.

Calculate revenue per square foot for business planning and analysis.

Cost per hire measures recruiting expenditure relative to the number of employees hired during a period.

Calculate labor productivity for business planning and analysis.

Estimate concrete volume for slabs, footings, walls, columns and post holes.

Calculate floor, wall, lot and surface area in square feet.

Turns coverage dimensions and layer depth into cubic volume.

Estimate paint quantity from surface area, coats and product coverage.

Estimate sloped roof area and roofing material requirements.

Hardwood and rough-sawn lumber are often priced by volume rather than by simple length or surface area.

Estimate roof pitch for practical construction and project planning.

Estimate tile quantities for floors and walls, including cuts and waste.

Estimate flooring quantities from measured area, box coverage and waste.

Stair layout turns a total vertical rise into a practical number of risers and matching tread geometry.

Converts measured surfaces into sheet count and can add a waste allowance for practical ordering.

Estimates board runs and material length, then adds a waste allowance for cuts and offcuts.

Helps turn measured fence runs into practical component quantities before special posts and gates are added.

Turns length, width and depth into cubic yards without requiring you to handle cubic-foot conversion manually.

Estimate concrete block for practical construction and project planning.

Asphalt quantity for a driveway or pavement section depends on area, compacted thickness and mix density.

Pipework can hold a surprising amount of fluid once a run becomes long or the bore becomes large.

Tank capacity starts with the vessel’s internal geometry, not its outside shell dimensions.

Estimate brick for practical construction and project planning.

Estimate insulation for practical construction and project planning.

Sand is commonly ordered by volume or weight for bedding, masonry, landscaping and construction.

Turns measured exterior surfaces into a purchase area.

Helps turn wall measurements into roll quantity.

Combines required quantity with unit price to estimate the direct purchase cost of a project material.

Estimates reinforcing-bar quantity from slab, wall or footing dimensions and the chosen bar spacing.

Estimates the volume of soil or material removed from a trench, footing, pit or rectangular cut.

Estimates the number of vertical framing studs required along a wall from wall length and chosen on-centre spacing.

Estimate paver for practical construction and project planning.

Estimates the sloping length from horizontal run and roof rise or pitch.

Estimate joist for practical construction and project planning.

Provides quantity estimates from wall length, height and unit dimensions.

Trench quantity calculations help estimate excavation volume for utilities, drainage, footings and landscaping.

Concrete footing estimates focus on the volume of concrete below a wall, column or structural support.

Concrete slab quantity depends on plan area and thickness.

A gravel driveway estimate combines driveway area with the thickness of each aggregate layer.

Concrete column quantity depends on the column cross-section, height and number of columns.

Helps estimate concrete for monolithic steps from rise, run, width and number of steps.

Mortar quantity depends on masonry unit size, joint thickness, wall area and the type of masonry work.

Estimate concrete wall for practical construction and project planning.

Concrete beam quantity depends on cross-sectional width, depth and beam length.

Concrete curb estimates convert curb length and cross-sectional dimensions into concrete volume.

Aggregate base quantity depends on finished area, compacted thickness and material density.

Board and batten spacing calculations help lay out repeated battens evenly across a wall or panel.

Estimates the actual sloped surface area of a roof from building footprint dimensions and roof pitch.

Estimate concrete ramp for practical construction and project planning.

Estimates the amount of grout needed to fill joints between tiles.

Estimates how much carpet is needed from room dimensions, roll width and layout.

Estimate air changes per hour for practical construction and project planning.

Estimates how many posts are needed along a fence line and the resulting centre-to-centre spacing.

Estimates how much of an electrical raceway’s internal cross-sectional area is occupied by conductors.

Estimates the number of prefabricated panels and supporting posts needed for a fence run.

Estimate ceiling tile for practical construction and project planning.

Estimates how many standard sheets are needed to cover a floor, wall, roof deck or fabrication area.

Estimate brick wall for practical construction and project planning.

Estimates the number of deck boards needed from deck dimensions, board width and the planned gap between boards.

Finds the scale factor and applies it consistently to the original ingredient quantities.

Convert cups to grams using ingredient-specific weight or density.

Calculate dough hydration for recipe and kitchen planning.

Convert cooking measurement between common units quickly and consistently.

Is most useful for scaling batter quantity between pans of similar shape and intended fill depth.

Adds the ingredient cost of a batch and can convert that total into cost per serving or portion.

Changes a dough formula to a new total weight, loaf count or number of dough pieces.

Helps set the relationship between coffee grounds and brewing water by weight.

Scales cooking water from the amount of rice and a chosen ratio.

Keeps the selected convention explicit so salt and water quantities can be scaled consistently.

Baker’s percentage expresses every ingredient as a percentage of total flour weight, with flour defined as 100%.

Helps translate between common baking yeast types such as fresh yeast, active dry yeast and instant yeast.

Scales a dough formula from pizza count, dough-ball weight and baker’s percentages.

Calculate sourdough feeding for recipe and kitchen planning.

Calculate food cost percentage for recipe and kitchen planning.

Helps adapt batter quantity between pans with different shapes or sizes by comparing their areas or volumes.

Compares pizzas by actual circular area rather than diameter alone.

Determines the ingredient or purchase cost assigned to one serving, plate, drink or packaged portion.

Estimates how many servings or finished units a recipe produces.

Estimates dry or fresh pasta quantity from the number of diners and the intended serving size.

Estimates total dough weight and the number of loaves, rolls or dough pieces a formula can produce.

Find exact age in years, months and days between two dates.

Count working days between dates or move dates by business days.

Calculate work hours, time intervals and decimal-hour conversions.

Measures the calendar interval and lets you keep the counting convention explicit for deadlines and planning.

Finds the elapsed duration cleanly in hours, minutes and seconds.

Handles the calendar movement directly instead of relying on manual month-by-month counting.

Identifies which weekday corresponds to a calendar date.

Calculate time zone for schedules and time planning.

Moves a calendar date forward or backward by a chosen number of days, weeks, months or years.

Measures the time remaining between now or a chosen starting moment and a future date and time.

Identifies the numbered week containing a given date.

Converts hours, minutes and seconds into decimal hours or converts decimal hours back into clock-style time.

Convert unix timestamp between common units quickly and consistently.

Changes between the 24-hour clock and the 12-hour AM/PM format.

Finds elapsed time between two clock readings, including cases that cross midnight.

Calculate weighted grades and the score needed to reach a target.

Calculate GPA from course grades, credits and quality points.

When some values count more than others, a simple mean gives the wrong emphasis.

Calculate final grade for study and academic planning.

Calculate test grade for study and academic planning.

Estimates how long a piece of text takes to read from word count and an assumed reading speed.

Combines assignment categories or assessments that contribute different percentages to the final course grade.

Attendance percentage shows how much of a scheduled class, course or program a student has attended.

Combines student scores to show the mean performance of a group.

Measures how quickly text is typed, commonly in words per minute, and can also account for accuracy.

Helps divide a fixed amount of study time across subjects, topics or deadlines.

Estimates the grades or future GPA needed to reach a desired cumulative GPA.

Measures how quickly a person reads a passage, commonly in words per minute.

Calculate pages per day for study and academic planning.

Converts a fixed amount of material into a daily or weekly target before a deadline.

Estimates how many pages a document may occupy from its word count and formatting assumptions.

Shows how much of a book or document has been completed and how much remains.

Divides available test time across questions, sections or marks.

Calculate flashcard pace for study and academic planning.

Estimates how long it will take to type a known number of words at a given typing speed.

Calculate electricity cost for electrical and energy planning.

Calculate watts to amps for electrical and energy planning.

Estimate battery runtime from capacity, voltage and device power demand.

Ohm’s law links voltage, current and resistance in a simple resistive circuit.

Estimates the drop from conductor properties, length and current.

Translates the band sequence into resistance so components can be identified quickly without memorizing every code.

Resistors connected in parallel share the same voltage while the current splits among branches.

Electrical power describes the rate at which electrical energy is transferred or used.

Kinetic energy is the energy an object has because it is moving.

Calculate frequency and wavelength for electrical and energy planning.

A capacitor stores electrical energy in an electric field between its plates.

Battery runtime estimates how long a battery can support a load from stored energy and power demand.

Power factor compares real power with apparent power in an AC circuit.

A transformer changes AC voltage and current according to the turns ratio between its windings.

Finds the output voltage produced by two or more resistors connected in series across a supply.

Estimates the series resistance needed to limit current through a light-emitting diode from a DC supply.

Adds resistor values connected end-to-end in a single current path.

Capacitors connected in parallel share the same voltage while their effective plate area is increased.

Capacitors connected in series carry the same magnitude of charge while the total voltage is divided among them.

Converts power used over time into energy, commonly expressed in watt-hours or kilowatt-hours.

Calculate battery charging time for electrical and energy planning.

Calculate solar panel for electrical and energy planning.

An inverter converts DC battery or solar power into AC power for appliances.

Calculate battery capacity for electrical and energy planning.

Helps distinguish watts, volt-amperes and three-phase relationships.

The RC time constant describes how quickly a resistor-capacitor circuit charges or discharges.

Is useful in filters, coupling networks and AC circuit analysis.

Inductive reactance describes the frequency-dependent opposition an ideal inductor presents to alternating current.

Gives the ideal natural resonance from inductance and capacitance.

Calculate battery series parallel for electrical and energy planning.

Changes rates of repetition between hertz, kilohertz, megahertz, gigahertz and other supported frequency units.

Calculate solar battery bank for electrical and energy planning.

Estimates how long a generator may operate from a known fuel quantity at a given fuel-consumption rate.

Estimates the electrical capacity needed to run a group of appliances or equipment.

Battery C-rate expresses charge or discharge current relative to battery capacity.

Calculate lighting watts for electrical and energy planning.

Estimates how long an uninterruptible power supply may support a connected load during a power outage.

Estimates how quickly a heater can raise a quantity of water from one temperature to another.

Lumens measure the total visible light output of a lamp or fixture.

Calculate solar panel output for electrical and energy planning.

Estimates electricity consumption and cost from appliance power, operating time and electricity tariff.

Connects battery charge capacity with energy capacity using system voltage.

Determines air speed from volumetric airflow and duct cross-sectional area.

Finds the cross-sectional flow area of a circular duct from its internal diameter.

Calculate ventilation airflow for electrical and energy planning.

Calculate battery charge time for electrical and energy planning.

Estimates how long electricity savings may take to recover the upfront net cost of a solar installation.

Calculate gratuity, bill totals and equal per-person splits.

Calculate savings and final prices from percentage or fixed discounts.

Two packages can have very different shelf prices yet cost almost the same per unit.

Calculate sales tax, tax-inclusive totals and pre-tax prices.

Solve speed, distance or time when the other two values are known.

Travel time estimates how long a journey takes from distance and expected average speed.

Calculate price per unit for everyday planning and comparison.

Divides a shared bill among several people and can include tax, tip or unequal contributions when supported.

Tank fill time estimates how long a tank takes to fill from a known flow rate.

Estimates the billable shipping weight created by package size.

Estimates how long a file transfer will take from file size and connection throughput.

Derives display width, height or diagonal from aspect ratio and one known dimension.

Estimates how much water a swimming pool holds from its shape and dimensions.

Aspect ratio describes the proportional relationship between width and height.

Digital storage units are easy to mix up because decimal and binary conventions use similar names.

Temperature conversion moves a reading between Celsius, Fahrenheit, Kelvin and other supported scales.

Convert length between common units quickly and consistently.

Changes a mass or everyday weight value between units such as kilograms, grams, pounds, ounces and tonnes.

Convert volume between common units quickly and consistently.

Convert area between common units quickly and consistently.

Changes pressure values between units such as pascals, kilopascals, bar, psi and atmospheres.

Calculate vat for everyday planning and comparison.

Convert speed between common units quickly and consistently.

Convert energy between common units quickly and consistently.

Changes rates of energy transfer between units such as watts, kilowatts, megawatts and horsepower.

Changes force measurements between units such as newtons, kilonewtons, pound-force and kilogram-force.

Changes angular measurements between degrees, radians, gradians and other supported units.

Changes mass-per-volume measurements between units such as kg/m³, g/cm³, lb/ft³ and lb/gal where supported.

Changes durations between units such as seconds, minutes, hours, days, weeks and smaller or larger supported units.

Convert data transfer rate between common units quickly and consistently.

Estimates how much water a household, fixture, activity or system uses over time.

Convert flow rate between common units quickly and consistently.

Convert acceleration between common units quickly and consistently.

Changes rotational moment between units such as newton-metres, pound-feet, pound-inches and kilogram-force metres.

Calculate pixel density (ppi) for everyday planning and comparison.

Calculate image file size for everyday planning and comparison.

Estimates storage from bitrate and duration.

Estimates the network capacity required for simultaneous users, streams, transfers or applications.

Determines how much water to remove and replace for a chosen percentage change.

Estimates water capacity from tank dimensions and shape.

Relates digital image pixels to physical print dimensions.

Estimates storage from bitrate, duration, channel and encoding assumptions.

Estimates cumulative internet or mobile data consumed from activity rate and time.

Calculate dew point for everyday planning and comparison.

Converts image width and height in pixels into total pixel count and megapixels.

Estimates physical print dimensions from image pixel dimensions and a chosen pixel density.

Estimates a comfortable screen distance from television size and a chosen field-of-view or resolution guideline.

Relates image width, projector lens throw ratio and projector-to-screen distance.

Calculate screen resolution for everyday planning and comparison.

Calculate video bitrate for everyday planning and comparison.

Works with audio data rate, file size and duration.

Compares original and compressed file sizes to show how much storage was reduced.

Estimates how long a file may take to transfer from your device to a server or cloud service.

Simplifies width-to-height proportions and can derive screen width or height from a diagonal and ratio.

Converts digital pixel dimensions into physical inches using a specified pixel density.

Estimate fixed loan payments, repayment totals and interest costs.

Project compound growth from principal, rate, time and recurring contributions.

Estimate mortgage payments, interest and recurring housing costs.

Estimate auto-loan payments and total interest from amount financed, rate and term.

Works backward from the goal, starting balance and time available, with optional growth assumptions.

Is useful when the monthly payment alone does not tell the full story.

Simple interest grows only from the original principal, not from previously accumulated interest.

Return on investment compares the gain or loss from an investment with the amount committed to it.

Calculate retirement for financial planning and comparison.

Calculate apr for financial planning and comparison.

House affordability is broader than the largest mortgage payment a lender might approve.

Estimates that time and interest effect.

A down payment changes both the amount financed and the amount of cash needed at closing.

Renting and buying create different cash flows rather than one simple monthly-payment comparison.

Debt-to-income ratio compares recurring monthly debt obligations with gross monthly income.

Is best used to compare scenarios rather than to predict a guaranteed outcome.

Inflation changes what money can buy over time.

Calculate present value for financial planning and comparison.

Future value projects what money today could become after earning a specified return over time.

Refinancing replaces an existing loan with a new one, usually to change the interest rate, payment or term.

Calculate auto lease for financial planning and comparison.

Return on equity measures how much net income a company generates relative to shareholders’ equity.

Return on assets measures how efficiently a company generates net income from the assets it controls.

Calculate current ratio for financial planning and comparison.

Calculate quick ratio for financial planning and comparison.

Working capital is the dollar difference between current assets and current liabilities.

Bond yield expresses return relative to a bond’s price or cash flows.

Calculate cagr for financial planning and comparison.

Effective interest rate shows the annual rate after accounting for compounding within the year.

Dividend yield compares annual dividend income with the current share price.

Calculate loan comparison for financial planning and comparison.

Net present value converts future cash flows into today’s value and subtracts the initial investment.

Internal rate of return is the discount rate that makes a project’s net present value equal to zero.

Calculate discounted payback period for financial planning and comparison.

An annuity is a series of equal payments made at regular intervals.

A perpetuity is a stream of equal payments expected to continue indefinitely.

Calculate credit card payoff for financial planning and comparison.

Loan-to-value ratio compares a loan balance with the value of the property or asset securing it.

Capitalization rate compares a property’s net operating income with its value or purchase price.

Mortgage points are upfront charges expressed as a percentage of the loan amount.

Estimates a cash reserve from essential monthly expenses and a chosen number of months of coverage.

Calculate savings withdrawal for financial planning and comparison.

Cost of debt estimates the effective rate a company pays on borrowed capital.

Calculate wacc for financial planning and comparison.

Calculate debt service coverage ratio for financial planning and comparison.

Organizes multiple debts so extra money is directed to the smallest balance first.

Debt-to-equity ratio compares a company’s debt with shareholders’ equity.

Interest coverage ratio measures how many times operating earnings can cover interest expense.

Return on invested capital measures operating profit after tax relative to the capital invested in the business.

Calculate free cash flow for financial planning and comparison.

Operating cash flow ratio compares cash generated from operations with current liabilities.

Calculate annualized return for financial planning and comparison.

Calculate rule of 72 for financial planning and comparison.

Gross rent multiplier compares a property’s price with its gross rental income before operating expenses.

Debt yield compares a property’s net operating income with the loan amount secured against it.

Organizes multiple debts so extra money is directed to the highest interest rate first.

Price-to-earnings ratio compares a company’s share price with earnings per share.

Dividend payout ratio measures how much of a company’s earnings are distributed to shareholders as dividends.

Cash-on-cash return measures annual pre-tax cash flow relative to the actual cash invested in a property.

Rental yield compares rental income with the value or purchase price of a property.

Mortgage recasting recalculates the required payment after a borrower makes a substantial principal reduction.

An interest-only mortgage payment covers interest without reducing principal during the interest-only period.

Biweekly mortgage payments split the regular monthly payment into smaller payments made every two weeks.

Estimates the present value of a bond’s future coupon payments and principal repayment using a required yield.

Converts distance and elapsed time into pace and can use a target pace to estimate a finish time.

Breaks a target or completed race time into equal-distance checkpoints.

Estimates a likely time at one running distance from a known performance at another distance.

Converts a swim distance and time into pace per 100 metres, 100 yards or another supported interval.

Converts ride distance and time into average speed or pace.

Turns a distance and time into the common rowing split, usually minutes and seconds per 500 metres.

Calculate hiking time for training and performance planning.

Links pedaling cadence with bicycle gearing, wheel circumference and road speed.

Convert pace between common units quickly and consistently.

Estimates walking or running distance from step count and stride length.

Converts distance and time into pace or average walking speed.

Converts bed area and chosen depth into cubic yards, cubic feet, litres or an estimated bag count.

Topsoil orders are based on volume: surface area multiplied by the depth of soil being added.

Plant spacing determines how many plants fit in a bed and how much growing room each plant receives.

Lawn area is the starting point for seed, fertilizer, irrigation and mowing estimates.

Seed quantity is usually based on a recommended application rate per unit area.

Estimate fertilizer for garden and landscape planning.

Estimates the soil or growing-medium volume needed to fill a raised garden bed.

Estimates how much compost is needed to cover a garden, lawn or bed at a chosen application depth.

Estimate lawn mowing time for garden and landscape planning.

Estimate irrigation runtime for garden and landscape planning.

Estimate rainwater harvesting for garden and landscape planning.

Sod is purchased by area, but the number of rolls or pallets depends on the supplier’s package coverage.

Estimate pond volume for garden and landscape planning.

Provides a planning heat-load estimate rather than a full HVAC design.

Estimate potting soil for garden and landscape planning.

Estimates the sheet dimensions needed to cover a pond basin.

Helps mix a concentrated liquid or soluble fertilizer to a target concentration or product-to-water ratio.

Sprinkler precipitation rate describes how quickly an irrigation system applies water depth over an area.

Estimate soil amendment for garden and landscape planning.

Estimates the linear length of edging needed around garden beds, lawns, paths or other landscape boundaries.

Converts a rainfall depth over a catchment area into total water volume.

Estimates total zone flow from emitter flow rate and the number of emitters operating at once.

Estimates the internal volume of cylindrical, rectangular or tapered pots.

Estimate garden hose flow rate for garden and landscape planning.

Estimates the sheet area or roll length needed to cover beds, paths or planted areas.

Estimates decorative stone volume and weight from area, layer depth and material density.

Estimate hedge spacing for garden and landscape planning.

Estimates how many trees fit along a row or across an area at a chosen planting distance.

Estimates how much roof runoff can be captured and how quickly a rain barrel may fill.

Estimate plant population for garden and landscape planning.

Estimate soil volume for garden and landscape planning.

Calculate percentages, percentage changes, increases, decreases and reverse percentages.

Adds, subtracts, multiplies or divides fractions and reduces the answer to a simpler form.

Finds the mean together with supporting totals and counts.

Calculate percentage increases or decreases from an original value.

Simplify and compare ratios between two or more quantities.

Calculate area for common two-dimensional shapes in multiple units.

Calculate volume for common three-dimensional shapes and convert units.

Calculate sample or population standard deviation and variance.

Find mean, median and mode for a set of values.

Exponents are a compact way to represent repeated multiplication.

A square root asks which number, when multiplied by itself, produces the original value.

Slope describes how much a line rises or falls for each unit of horizontal change.

A triangle can be solved from different combinations of sides, angles, base and height.

Solves for whichever side is missing.

Is useful when a drawing or real object gives you only one dimension.

Surface area measures the total outside area of a three-dimensional solid.

Scientific notation writes very large or very small numbers as a coefficient multiplied by a power of ten.

Handles common single-event, combined-event and complementary probability relationships.

A z-score shows how far an observation lies from a mean in units of standard deviation.

Variance measures how widely values spread around their mean by averaging squared deviations.

Calculate confidence interval with clear mathematical inputs.

Solves equations in the standard form ax² + bx + c = 0 and exposes the discriminant behind the result.

Percentage error compares an observed or experimental value with an accepted reference value.

Permutations and combinations both count ways of choosing items, but they answer different questions.

Calculate lcm with clear mathematical inputs.

The greatest common factor is the largest positive integer that divides every number in a set without remainder.

Prime factorization breaks a whole number into prime numbers whose product recreates the original value.

Factors are whole numbers that divide another integer without leaving a remainder.

Handles common, natural and other supported logarithm bases.

Rounding replaces a number with a nearby value at a chosen precision.

The midpoint of two points lies exactly halfway between them in coordinate space.

The distance between two coordinates is the straight-line length joining them.

Isolates that unknown while preserving the balancing logic used in algebra.

Solves supported linear systems and helps distinguish unique, inconsistent and dependent cases.

A factorial multiplies a positive integer by every smaller positive integer down to 1.

An arithmetic sequence changes by the same fixed amount from one term to the next.

A geometric sequence changes by multiplying each term by the same common ratio.

A percentile describes the position of a value within an ordered data set.

The interquartile range measures the spread of the middle 50% of a data set.

Calculate cone with clear mathematical inputs.

A cylinder has a constant circular cross-section along its height.

A pyramid tapers from a polygonal base to a single apex.

Density describes how much mass is packed into a given volume.

Force describes a push or pull that can change an object’s motion.

Acceleration measures how quickly velocity changes with time.

Momentum combines mass and velocity into one quantity that describes motion.

Evaluates the determinant of a square matrix.

Finds the inverse of a square matrix when one exists.

Converts a terminating or repeating decimal into an equivalent fraction and reduces it to lowest terms.

Divides a numerator by a denominator to express the fraction in decimal form.

Calculate mixed number with clear mathematical inputs.

Solves relationships where two ratios are equal.

Expresses a straight line as y = mx + b, where m is slope and b is the y-intercept.

Estimates how much a sample statistic, most commonly the sample mean, would vary across repeated samples.

Estimates the plus-or-minus distance around a sample estimate for a chosen confidence level.

Measures the strength and direction of a linear relationship between two numerical variables.

Fits a straight line that predicts one variable from another by minimizing squared residuals.

Calculate binomial probability with clear mathematical inputs.

Converts values to z-scores or finds probabilities under a bell-shaped normal model.

Finds the probability-weighted average outcome of a random process.

Calculate geometric mean with clear mathematical inputs.

Calculate harmonic mean with clear mathematical inputs.

Coefficient of variation expresses standard deviation relative to the mean.

Calculate sample size with clear mathematical inputs.

A cube root asks which number multiplied by itself three times gives the original value.

Generalizes square and cube roots by allowing any positive integer root degree.

A circle sector is the wedge-shaped region bounded by two radii and the arc between them.

Arc length measures the distance along part of a circle’s circumference.

Handles common arithmetic and representation tasks while keeping real and imaginary parts separate.

Combine vectors, scale them and derive quantities such as magnitude.

The dot product combines two vectors into a single scalar.

The cross product of two three-dimensional vectors produces a third vector perpendicular to both.

Polynomial calculations involve expressions built from coefficients and non-negative integer powers of a variable.

Covariance measures whether two variables tend to move together.

Calculate mean absolute deviation with clear mathematical inputs.

Calculate root mean square with clear mathematical inputs.

Calculate poisson probability with clear mathematical inputs.

Chi-square calculations compare observed counts with expected counts.

Changes the representation of an integer between numeral systems such as binary, octal, decimal and hexadecimal.

Convert roman numeral between common units quickly and consistently.

Significant figures describe the digits in a measured or reported number that convey its precision.

Odds and probability express the same uncertainty in different forms.

Calculate percentage difference with clear mathematical inputs.

Works with the geometry of a perfectly round three-dimensional object.

Finds area and related measurements for a quadrilateral with one pair of parallel sides under the usual definition.

Finds area, perimeter and related dimensions for a quadrilateral whose opposite sides are parallel.

Works with the geometry of an oval defined by two semi-axes.

Finds volume, surface area and related dimensions for a box-shaped solid with rectangular faces.

Works with shapes whose sides and interior angles are all equal.

Calculate circle chord with clear mathematical inputs.