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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?
31 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.
08Discount
See the final price and exactly how much you save.
09Tip
Split a bill and tip fairly between your group.
10Sales Tax
Add a sales-tax rate to a pre-tax price.
11Unit Price
Compare a package by its price per item or unit.
12Fuel Cost
Estimate the fuel and cost needed for a trip.
13Date
Count calendar days between two dates, including leap years.
14Age
Find age in completed years and time until the next birthday.
15Hours
Calculate a work shift, including an unpaid break.
16Time Duration
Convert hours, minutes and seconds into one duration.
17Simple Interest
Calculate interest earned only on the original principal.
18Compound Interest
See how a balance grows when interest compounds.
19Loan
Estimate a fixed monthly payment and total interest.
20Mortgage
Estimate principal, interest and the other monthly costs of a home payment.
21Amortization
See how an extra monthly payment changes payoff time and total interest.
22Savings
Project a balance with regular monthly contributions.
23Length Converter
Convert common metric and US customary length units.
24Weight Converter
Convert mass between kilograms, pounds, ounces and stones.
25Shoe Size Converter
Estimate adult EU, UK and US shoe sizes from one size or foot length.
26Temperature Converter
Convert Celsius, Fahrenheit and kelvin.
27Area
Calculate rectangular area and perimeter in your chosen unit.
28Concrete
Estimate slab volume, including your chosen waste allowance.
29Tile
Estimate whole tiles for a rectangular surface, including waste.
30Density
Find density, mass or volume with automatic unit conversion.
31No calculators match. Try a different word or category.
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