Numbers, Algebra and Statistics calculators

Scientific calculations, equations, statistics, prime factors, number bases, rounding and random numbers.

Scientific Calculator

Trigonometry, logarithms, powers, roots, factorials and constants in degrees or radians.

Standard Deviation Calculator

Sample and population standard deviation, variance, mean and standard error from a list of numbers.

LCM and GCF Calculator

Find the least common multiple and greatest common factor of two or more whole numbers.

Quadratic Equation Solver

Solve ax² + bx + c = 0 for real or complex roots, with the discriminant and vertex.

Prime Factorization Calculator

Check whether a number is prime and break it into prime factors, with all its divisors.

Number Base Converter

Convert whole numbers between binary, octal, decimal, hexadecimal and any base from 2 to 36.

Roman Numeral Converter

Convert numbers to Roman numerals and back, from 1 to 3,999, with a symbol breakdown.

Rounding Calculator

Round to decimal places, significant figures or the nearest multiple, with five rounding rules.

Scientific Notation Converter

Convert numbers to and from scientific, E and engineering notation, with significant figures.

Random Number Generator

Generate random whole numbers or decimals in any range, with or without repeats.

Permutation and Combination Calculator

Calculate nPr and nCr exactly, with and without repetition.

Probability Calculator

Probability of two events, at least once in n tries, and binomial outcomes.

Matrix Calculator

Determinant, inverse, transpose, multiplication, addition and powers of matrices.

System of Equations Solver

Solve systems of linear equations like 2x + 3y = 8, with up to 8 unknowns.

Percent Error and Significant Figures Calculator

Percent error between measured and true values, and significant figure counting and rounding.

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