Math Calculators: Fractions, Exponents, Number Bases, Matrices and More
These calculators cover the everyday and the academic: simplify a fraction, solve a quadratic equation, convert between decimal, binary and hexadecimal, multiply matrices, or work with powers and logarithms. Each shows the result and the method, which makes them useful for checking homework as well as for quick answers.
18 free math calculators
Fraction Calculator
Add, subtract, multiply or divide two fractions — result is automatically simplified.
Open calculator →Random Number Generator
Generate one or many random integers within a range, with an optional no-repeats mode.
Open calculator →Exponent Calculator
Compute base raised to any power, including negative and fractional exponents.
Open calculator →Binary Calculator
Convert between decimal and binary, or do arithmetic directly on binary numbers.
Open calculator →Hex Calculator
Convert between decimal and hexadecimal, or do arithmetic directly on hex values.
Open calculator →Half-Life Calculator
Compute the quantity remaining after a given elapsed time, based on a substance's half-life.
Open calculator →Quadratic Formula Calculator
Solve ax² + bx + c = 0 for x, including complex roots.
Open calculator →Log Calculator
Compute the logarithm of a value to any base — base 10, base e (ln), or a custom base.
Open calculator →Ratio Calculator
Simplify a ratio, or solve for the missing term in a proportion A:B = C:D.
Open calculator →Root Calculator
Compute the nth root of a number — square root, cube root, or any custom degree.
Open calculator →Least Common Multiple Calculator
Compute the LCM across any list of positive integers.
Open calculator →Greatest Common Factor Calculator
Compute the GCF (GCD) across any list of positive integers.
Open calculator →Factor Calculator
List every factor of a positive integer, plus its prime factorization.
Open calculator →Rounding Calculator
Round a number to any decimal place or to the nearest ten/hundred/…, with nearest/up/down modes.
Open calculator →Matrix Calculator
Add, subtract, multiply, transpose, or find the determinant of matrices up to 5×5.
Open calculator →Scientific Notation Calculator
Convert a decimal number to scientific notation, or build a decimal from a mantissa and exponent.
Open calculator →Cartesian Product Calculator
Every ordered tuple picking one element from each set — A × B (or more sets at once).
Open calculator →Power Set Calculator
Every subset of a set — including the empty set and the set itself.
Open calculator →Frequently asked questions
Can I convert between binary, decimal and hexadecimal?
Yes. The binary and hex calculators convert in both directions and can do arithmetic directly on binary and hexadecimal numbers.