US Math Calculators — Maths & Statistics

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Calculate your exact age in years, months and days from your date of birth.

Add or subtract days, weeks, months and years from any date.

Calculate your cumulative GPA from course grades and credit hours.

Generate random lottery numbers with 3D ball drop animation for Powerball, Mega Millions and more.

Generate random numbers within a custom range for games, draws and simulations.

Add, subtract, multiply and divide fractions with step-by-step simplification.

Raise numbers to any power and calculate nth roots.

Solve quadratic equations — find roots, vertex and discriminant.

Find square roots, cube roots and check for perfect squares.

Calculate the sale price after a percentage discount and see how much you save.

Calculate percentages, percentage change and what percent one number is of another.

Simplify ratios, solve proportions and divide amounts by ratio.

Calculate the area of rectangles, triangles, circles, trapeziums and more.

Find the volume of cubes, spheres, cylinders, cones and pyramids.

Enter a data set and find the mean, median, mode, range, count and sum.

Calculate population and sample standard deviation, variance and more.