Math Calculators

Percentages, fractions, averages, exponents, equations and more — with full step-by-step workings. 15 tools.

All Math calculators

Find the average of any list of numbers: count the values, add them up, and divide by how many there are.

Convert between decimals, fractions, and percentages in either direction, and see all three representations of any number.

Solve linear equations of the form ax + b = cx + d with full isolating steps and a check that the solution works.

Raise a base to any power — positive, negative, or fractional — and see the repeated multiplication worked out.

Add, subtract, multiply, or divide two fractions and get the simplified result plus the full step-by-step working.

Find the greatest common factor of two or three numbers, with divisor lists and the Euclidean algorithm shown step by step.

Find the least common multiple of two or three numbers using the gcd formula, with the first multiples listed for verification.

Compute the logarithm of any number in base 10, base 2, base e, or a custom base, using the change of base formula.

Compute the determinant, inverse, or transpose of a 2×2 or 3×3 matrix with the expansion shown in full detail.

Compute the mean, median, mode, range, sample variance, and sample standard deviation of any list of numbers.

Solve any percentage problem: percent of a number, percentage change, and what percent one number is of another.

Check whether a number is prime by trial division, see its full divisor list, and get its prime factorization with exponents.

Simplify ratios, solve for an unknown ratio term, or scale a ratio up — with the full step-by-step working.

Evaluate square roots, trig functions, logarithms, exponentials, powers, reciprocals, and absolute values with full workings.

Evaluate arithmetic expressions with addition, subtraction, multiplication, division, powers, parentheses, and decimals — safely, step by step.

Fraction Calculator · GCF Calculator · Log Calculator . Each tool includes a formula, worked example, step-by-step calculation and FAQ.

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