Math Calculators

Find percent of a number, part of whole, increases, decreases, and reverse percentages.

Calculate signed percentage change from an original value to a new value.

Calculate symmetric percentage difference between two values.

Add, subtract, multiply, and divide fractions, decimals, mixed numbers, and repeating decimals.

Convert fractions to terminating or repeating decimals with cycle detection.

Convert finite, scientific, and repeating decimals to exact or approximate fractions.

Simplify ratios, scale equivalent ratios, and divide totals across ratio parts.

Solve missing values in direct and inverse proportions.

Calculate arithmetic average and solve one missing value for a target average.

Find the median from an exact numeric list after sorting.

Find one mode, multiple modes, or no mode from a normalized number list.

Round decimals to places, significant figures, powers of ten, or increments.

Convert numbers to scientific notation, engineering notation, and decimal form.

Calculate integer and fractional powers with exact rational output where practical.

Calculate nth roots with exact perfect-root detection and decimal approximations.

Calculate square roots, perfect squares, simplified radicals, and approximations.

Calculate cube roots, perfect cubes, simplified radicals, and approximations.

Calculate common, natural, binary, and custom-base logarithms.

Calculate inverse logarithm values for base 10, e, 2, or a custom base.

Calculate factorials, digit counts, and trailing zeros for nonnegative integers.

Check whether a number is prime and find nearby or ranged primes.

Find prime factors, exponents, divisor count, and reconstruction.

Calculate the greatest common divisor for two or more integers.

Calculate the least common multiple for two or more integers.

Calculate Euclidean modulo, quotient and remainder, congruence, powers, and modular inverses.

Calculate absolute value, distance between values, and simple absolute-value equations.

Convert integer and fractional values between bases 2 through 36.

Calculate binary arithmetic, conversion, bitwise operations, shifts, and signed values.

Calculate hexadecimal arithmetic, conversion, bitwise operations, shifts, and signed values.

Calculate octal arithmetic, conversion, bitwise operations, shifts, and signed values.

Calculate complex arithmetic, conjugates, powers, magnitude, and principal argument.

Calculate exact matrix addition, subtraction, multiplication, scalar products, transpose, power, and trace.

Calculate exact determinants for square matrices with rational entries.

Calculate exact inverse matrices with Gauss-Jordan elimination and singularity detection.

Solve one-variable linear equations with safe parsing, fractions, identity, and no-solution cases.

Calculate quadratic roots, discriminant, vertex, axis, and complex-root cases.

Calculate polynomial operations, evaluation, division, derivatives, factors, and supported roots.

Solve linear systems with exact RREF, rank, unique, infinite, and inconsistent classifications.

Solve supported one-variable inequalities with interval notation and number-line output.

Calculate general 2D and 3D geometry results with unit conversion and formula notes.

Solve triangle sides, angles, area, perimeter, classification, inradius, and circumradius.

Calculate circle radius, diameter, circumference, area, arcs, sectors, chords, segments, and annulus area.

Solve rectangle length, width, area, perimeter, diagonal, aspect ratio, and square checks.

Calculate area for common 2D shapes with square-unit conversion.

Calculate perimeter or circumference for common 2D shapes with unit conversion.

Calculate volume for common solids with cubic-unit conversion.

Calculate total and lateral surface area for common solids with square-unit conversion.

Calculate slope from two points or rise/run with line forms, angle, grade, and vertical-line handling.

Calculate exact 2D, 3D and n-dimensional Euclidean coordinate distance with squared distance and radical output.

Find exact coordinate midpoints, missing endpoints and internal section points in 2D, 3D or bounded n-dimensional mode.