All tools
Home / Math Calculators

Math Calculators

Algebra, geometry, statistics and number theory.

44 free tools

Most used

Scientific Percentage Standard Deviation Fraction Triangle Statistics

All 44 math calculators

Area Average Basic Big Number Binary Circle Common Factor Confidence Interval Distance Exponent Factor Fraction Greatest Common Factor Half-Life Hex Least Common Multiple Log Long Division Matrix Mean, Median, Mode, Range Number Sequence P-value Percent Error Percentage Permutation and Combination Prime Factorization Probability Pythagorean Theorem Quadratic Formula Random Number Generator Ratio Right Triangle Root Rounding Sample Size Scientific Scientific Notation Slope Standard Deviation Statistics Surface Area Triangle Volume Z-score

About these math calculators

From evaluating an expression to running a full descriptive statistics pass over a data set, these tools handle the mechanical part so you can concentrate on the interpretation. Calculations run in double precision and display rounded values while retaining full accuracy internally.

The statistics tools implement the distributions properly — normal, t, chi-square — rather than approximating from lookup tables, so p-values and confidence intervals are accurate across the full range. Geometry tools return every derived property, not just the one you asked for.