Math Calculators

Calculate what percentage a part is of a total.

Calculate percentage change between two values.

Convert decimals to fractions.

Convert a decimal to a simplified fraction.

Simplify and compare ratios.

Solve proportions A:B = C:D.

Calculate the average of a set of numbers.

Calculate mean, median, and mode.

Calculate standard deviation of a dataset.

Evaluate mathematical expressions.

Solve quadratic equations ax² + bx + c = 0.

Calculate the hypotenuse of a right triangle.

Check if a number is prime.

Find the Greatest Common Factor (GCF).

Find the Least Common Multiple (LCM).

Generate a random number in a range.

Calculate the area of a rectangle.

Calculate the area of a circle.

Calculate the area of a triangle.

Calculate the area of a trapezoid.

Calculate the volume of a cube.

Calculate the volume of a sphere.

Calculate the volume of a cylinder.

Calculate the volume of a cone.

Calculate the circumference of a circle.

Find the third angle of a triangle.