Calculators — Math & Everyday

Everyday math and general-purpose calculators, with formulas shown.

Paste a list of numbers to get the mean, median, mode, range, and count all at…

Convert a fraction to a decimal or a terminating decimal back to its simplest fraction —…

Add, subtract, multiply, or divide two fractions, with the result automatically simplified and shown as a…

Find the greatest common factor and least common multiple of two whole numbers — instantly, in…

Calculate X% of Y, what percent X is of Y, or the percent change from X…

Solve ax² + bx + c = 0 for x, with the discriminant and both real…

Simplify a ratio to lowest terms, or solve a proportion A:B = C:? for the missing…

Paste a list of numbers to get the standard deviation, variance, and mean — choose sample…