Math Calculators

Fast, accurate math tools — percentages, fractions, averages, ratios and everyday number crunching.

Solve any percentage problem in seconds.

Measure percent change between two numbers — or apply one.

Add, subtract, multiply and divide fractions — simplified.

Mean, median, mode and range from any list of numbers.

Simplify ratios, solve proportions and split a total.

Population and sample standard deviation, plus variance.

Weighted grade point average on the 4.0, 10-point, German and other scales.

Weighted course grade, and the score you need on the final.