Math calculators

Choose a tool, enter your numbers and see both the result and the method behind it.

Percentage Calculator

Find a percentage of any number, with the calculation explained.

Compare an original value with a new value.

Compare two values without treating either one as the original.

Evaluate a mathematical expression with functions and visible precedence.

Calculate the mean, total and range of a list of numbers.

Add, subtract, multiply or divide two fractions.

Scale a two-part ratio while keeping both sides proportional.

Convert earned and possible points into a percentage grade.