Find the Right Calculator for Every Task

Calculate a percentage of a number, find the whole from a part, or compare values.

Measure the percentage increase or decrease between two values.

Convert a decimal number into its equivalent percentage.

Turn a percentage into a decimal for calculations and formulas.

Find the arithmetic mean of a set of numbers.

Compare quantities and simplify ratios into an easier form.

Express a fraction as a percentage.

Reduce a fraction to its simplest equivalent form.

Find the least common multiple of two or more integers.

Find the greatest common divisor shared by integers.

Calculate the square root of a nonnegative number.

Calculate powers using a base number and exponent.

Write and convert numbers using powers of ten.

Estimate periodic loan payments and total interest costs.

Calculate interest earned or charged without compounding.

Estimate how money grows with compounded interest over time.

Explore savings growth based on deposits and interest assumptions.

Estimate salary amounts across common pay periods.

Convert an hourly pay rate into estimated annual earnings.

Find a sale discount and the price after the reduction.

Calculate value-added tax and prices before or after VAT.

Calculate sales tax and the total purchase price.

Find the increase between an original and updated price.

Calculate gross profit margin from selling price and cost.

Calculate markup on cost and explore selling-price scenarios.

Estimate the units needed to cover fixed and variable costs.

Calculate sales commission from a rate and sales amount.

Measure return on investment relative to its cost.

Find the compound annual growth rate between two values.

Compare products using the price per unit of quantity.

Calculate age in years, months and days from a birth date.

Calculate the elapsed time between two calendar dates.

Count calendar days between a selected start and end date.

Find the duration between two times.

See the time remaining until a future date or event.

Count working days while accounting for weekends and exclusions.

Calculate a gratuity and split the bill between people.

Estimate trip fuel spending from distance and fuel price.

Calculate fuel efficiency from distance and fuel consumed.

Find your running or walking pace from distance and time.

Calculate speed, travel distance or time from two known values.

Generate random numbers within a chosen range.

Estimate a grade-point average from course grades and credits.