Math Calculators
Percentages, fractions, equations — 8 calculators available.
Linear Equation Solver
Solve ax + b = c for x, including no-solution cases
Use CalculatorPrime Number Checker
Primality, factorization, divisors, and nearest primes
Use CalculatorPercentage Calculator
Four-in-one percentage tool covering all common percentage problems. Switch between modes to find a percentage of a number, find what percent one number is of another, or reverse-calculate a base number.
Use CalculatorFraction Simplifier
Simplify any fraction to its lowest terms using the Greatest Common Divisor algorithm. Instantly converts to decimal and mixed number form with full step-by-step display.
Use CalculatorScientific Notation Converter
Convert any number to and from scientific notation instantly. Supports very large and very small numbers and also displays engineering notation with exponents as multiples of three.
Use CalculatorQuadratic Equation Solver
Solve any quadratic equation ax² + bx + c = 0 instantly. Displays real or complex roots, the discriminant, vertex coordinates, and axis of symmetry with LaTeX formula rendering.
Use CalculatorFraction Calculator
Add, subtract, multiply and divide fractions and mixed numbers. Get the simplified answer, mixed number and decimal with step-by-step work.
Use CalculatorMean, Median & Mode Calculator
Calculate the mean, median, mode, range, variance and standard deviation of any data set. Paste a list of numbers for instant statistics.
Use CalculatorAbout Our Math Calculators
Solve math problems quickly with free online math tools. Work out percentages and percent change, add, subtract, multiply and divide fractions, simplify fractions, find the mean, median, mode and standard deviation of a data set, solve linear and quadratic equations, check whether a number is prime and convert to scientific notation. Each tool shows the formula or steps used, which makes them useful for homework help and checking your work.