15 free tools

Math tools

Fast calculators for percentages, statistics, geometry, and number problems.

Calculate percentages, percentage shares, and percentage differences.

Measure percentage increase or decrease between two values.

Add, subtract, multiply, or divide two fractions and simplify the result.

Simplify ratios and scale both sides to a target value.

Find the mean, sum, count, minimum, and maximum of a number list.

Find the median, lower quartile, and upper quartile of a dataset.

Calculate population and sample standard deviation with variance.

Solve real or complex roots of any quadratic equation.

Solve for any missing side of a right triangle.

Calculate the area of rectangles, circles, triangles, and trapezoids.

Calculate volume for boxes, cylinders, spheres, and cones.

Evaluate common scientific expressions with trigonometric and logarithmic functions.

Generate one or many cryptographically strong integers in a chosen range.

Convert integers between binary, octal, decimal, and hexadecimal.

Check whether an integer is prime and find its smallest factor.