🔢 Math calculators

Percentages, fractions, ratios, averages and scientific math.

Find a percentage of a number, what percent one is of another, and change.

Add, subtract, multiply or divide fractions with simplified results.

Solve proportions like A : B = C : ? and simplify ratios.

Get the mean, median, sum and range of any list of numbers.

Evaluate expressions with powers, roots, trig, logs and constants.

Turn points earned into a grade percentage, letter grade and GPA points.

Find the value c guaranteed by the Mean Value Theorem for f(x) on [a, b], with the average rate of change.