Math Calculators

Free online math calculators for all your mathematical needs — from scientific calculations to statistics.

A full-featured scientific calculator with trig, logarithms, powers, roots, and memory functions.

Add, subtract, multiply, and divide fractions. Also simplifies results to lowest terms.

Calculate percentages, percentage change, and percentage of a number.

Generate random numbers within any range, with options for unique numbers.

Calculate the sides, angles, and area of any triangle using various input methods.

Calculate mean, variance, and standard deviation for any dataset.

Find the Greatest Common Divisor (GCD) and Least Common Multiple (LCM) of multiple numbers.

Solve quadratic equations of the form ax² + bx + c = 0, with step-by-step discriminant details.

Find prime factors, prime factor tree, lists of all divisors, and prime status of any positive integer.