Math & Statistics

Free algebra calculator — solve linear and quadratic equations, simplify expressions, factor polynomials, expand expressions, and solve 2x2 systems of equations with step-by-step solutions.

Free Average Calculator — compute the arithmetic mean, median, mode, range, standard deviation, geometric mean, harmonic mean, and more from any set of numbers. Supports simple and weighted average modes.

Free Equation Solver — solve linear, quadratic, and systems of equations step-by-step with discriminant analysis, factored forms, and verification checks.

Free Greatest Common Factor (GCF) calculator — also known as GCD or HCF. Find the GCF of 2 to 10 numbers instantly with step-by-step solutions using Euclidean algorithm, prime factorization, or listing factors.

Free Least Common Multiple (LCM) Calculator — find the LCM of 2 to 10 integers instantly with step-by-step solutions using prime factorization, GCF method, or listing multiples.

Free Logarithm (Log) Calculator — compute log base 10, natural log (ln), binary log (log2), antilog, change of base, and solve for any logarithm variable with step-by-step solutions and real-world examples.

Free Logarithm Calculator — compute log, antilog, natural log, binary log, and custom-base logarithms. Solve log equations, generate log tables, and explore scientific applications like pH, decibels, Richter scale, and doubling time.

Free online Matrix Calculator for addition, subtraction, multiplication, determinant, inverse, transpose, eigenvalues, RREF, LU decomposition, and linear system solving — all computed instantly in your browser.

Calculate percentages, percentage increase/decrease, and find what percentage one number is of another