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Bill 85.00
Tip 18%
Friends 3
One person pays 33.44.
Two people pay 33.43.
Your everyday toolkit
What are you working out?
33 calculators across 7 focused categories.
Percentage
Find a percentage of any number, with the calculation explained.
01Percentage Change
Compare an original value with a new value.
02Percent Difference
Compare two values without treating either one as the original.
03Scientific
Evaluate a mathematical expression with functions and visible precedence.
04Average
Calculate the mean, total and range of a list of numbers.
05Fraction
Add, subtract, multiply or divide two fractions.
06Ratio
Scale a two-part ratio while keeping both sides proportional.
07Grade
Convert earned and possible points into a percentage grade.
08Dice Roller
Roll up to 100 virtual dice, add a modifier and inspect every result.
09Discount
See the final price and exactly how much you save.
10Tip
Split a bill and tip fairly between your group.
11Sales Tax
Add a sales-tax rate to a pre-tax price.
12Unit Price
Compare a package by its price per item or unit.
13Fuel Cost
Estimate the fuel and cost needed for a trip.
14Date
Count calendar days between two dates, including leap years.
15Age
Find age in completed years and time until the next birthday.
16Hours
Calculate a work shift, including an unpaid break.
17Time Duration
Convert hours, minutes and seconds into one duration.
18Simple Interest
Calculate interest earned only on the original principal.
19Compound Interest
See how a balance grows when interest compounds.
20Loan
Estimate a fixed monthly payment and total interest.
21Auto Loan
Estimate a US car payment with tax, fees, down payment and trade-in equity.
22Mortgage
Estimate principal, interest and the other monthly costs of a home payment.
23Amortization
See how an extra monthly payment changes payoff time and total interest.
24Savings
Project a balance with regular monthly contributions.
25Length Converter
Convert common metric and US customary length units.
26Weight Converter
Convert mass between kilograms, pounds, ounces and stones.
27Shoe Size Converter
Estimate adult EU, UK and US shoe sizes from one size or foot length.
28Temperature Converter
Convert Celsius, Fahrenheit and kelvin.
29Area
Calculate rectangular area and perimeter in your chosen unit.
30Concrete
Estimate slab volume, including your chosen waste allowance.
31Tile
Estimate whole tiles for a rectangular surface, including waste.
32Density
Find density, mass or volume with automatic unit conversion.
33No calculators match. Try a different word or category.
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