Math Calculators

Calculate percentages with three modes: find percentage of a number, what percent, or percent change.

Add, subtract, multiply or divide fractions with automatic simplification and decimal conversion.

Perform scientific calculations including square root, logarithm, trigonometry and factorial.

Solve any quadratic equation ax² + bx + c = 0 and find roots, discriminant and vertex.

Check if any number is prime and find its factors, next prime and previous prime number.

Calculate the Least Common Multiple (LCM) and Highest Common Factor (HCF/GCD) of numbers.

Calculate mean, median, mode, range and other statistics from a set of numbers instantly.

Calculate standard deviation, variance and mean for both population and sample data sets.

Calculate probability from favorable and total outcomes. Shows fraction, decimal, percentage and odds.

Calculate the missing side of a right triangle using the Pythagorean theorem. Find hypotenuse or leg length instantly.

Calculate square roots, cube roots and nth roots of any number. Check if a number is a perfect square.

Calculate the p-value from a z-score for hypothesis testing. Supports one-tailed and two-tailed tests.

Calculate percent error, absolute error and relative error between experimental and theoretical values.

Calculate the z-score (standard score) from a value, mean and standard deviation. Find percentile ranking.

Calculate the volume, surface area and lateral area of a cylinder from radius and height.

Count the number of significant figures in any number. Convert to scientific notation and round to N sig figs.

Add, subtract, multiply or divide mixed numbers and fractions. Get results as mixed numbers, improper fractions and decimals.