Math calculators cover everything from everyday arithmetic — percentages, fractions, square roots — to more advanced topics like algebra, calculus, statistics, and geometry. Whether you're a student working through homework, a professional needing a quick calculation, or just someone who needs to convert units or check a percentage, these tools give you the answer immediately.
The most-used tools here are the Percentage Calculator, the Fraction Calculator, and the Scientific Calculator. All tools are free with no account required.
Arithmetic & Percentages
Any percentage calculation
Percentage Increase% increase between two numbers
Percentage Change% change between original and new value
Percentage DifferenceSymmetric % difference between two values
Fraction CalculatorAdd, subtract, multiply, divide fractions
Square Root CalculatorExact and decimal square roots
Algebra & Calculus
Solve equations step by step
Scientific CalculatorTrig, logs, exponents & more
Quadratic FormulaSolve ax² + bx + c = 0
Math SolverEvaluate any math expression
Geometry & Trigonometry
Find any side of a right triangle
Distance FormulaDistance between two coordinate points
Slope CalculatorSlope and y-intercept from two points
Area CalculatorArea of any shape
Square Footage CalculatorArea for rectangles, triangles, circles
Volume CalculatorVolume of common 3D shapes
Statistics & Probability
Mean, median, mode, standard deviation
Average CalculatorArithmetic mean of any set
Standard DeviationPopulation and sample SD
Probability CalculatorSingle and compound probability
Conversions & Other