Free calculator library

Everyday math calculators

Useful number tools for sharing costs and checking everyday figures.

Average calculatorFind the mean of a list of numbers.Ratio simplifierReduce a two-part ratio to its simplest whole-number form.Bill-splitting calculatorSplit a total evenly across a group.Fuel cost calculatorEstimate the fuel cost for a trip.

How to use these calculators

Choose a calculator, enter values in the units shown and select Calculate. Review both the result and the formula notes. These tools are designed for general information; local taxes, fees, lender terms and individual health factors can change what applies to you.