Math Calculators (309)

Whether you need to simplify a fraction, factor a quadratic equation, or work through a geometry proof, our math calculators cover every branch of the subject. Convert between fractions and decimals, solve for radicals and factorials, and work through algebra step by step, all without opening a textbook. Real number theory, matrix operations, and logarithms are covered too, so whether you are a student checking homework or an adult brushing up on math you have not touched in years, there is a dedicated tool for it.

Beyond the basics, you will find calculators for trigonometry, from sine and cosine to full trigonometric function solvers, plus tools for calculus staples like derivatives and integrals. Geometry gets its own deep coverage, with calculators for circles, triangles, and other core shapes and proofs. Every tool here is free, works instantly in your browser, and needs no sign-up, so the right calculator for whatever problem you are solving is always just a click away.