Math Calculators
Quick, accurate math tools with step-by-step explanations so you can check your work or learn the method.
- Percentage CalculatorSolve any percentage problem: what is X% of Y, X is what percent of Y, and the percentage increase or decrease between two numbers.
- Fraction CalculatorAdd, subtract, multiply and divide fractions. Results are shown simplified, as a mixed number and as a decimal, with the steps.
- Average CalculatorCalculate the mean, median, mode, range, sum, minimum and maximum of a list of numbers. Paste values separated by commas, spaces or new lines.
- Standard Deviation CalculatorCalculate sample and population standard deviation, variance, mean and sum of squares for a data set, with the formulas explained.
- Ratio CalculatorSimplify a ratio, solve a proportion (A:B = C:D) for the missing value, or scale a ratio up or down.
- Pythagorean Theorem CalculatorFind the missing side of a right triangle with the Pythagorean theorem a² + b² = c². Also shows the area, perimeter and angles.
- Area CalculatorCalculate the area of a rectangle, triangle, circle, trapezoid, ellipse or parallelogram in any unit, with the formula for each shape.
- Quadratic Equation CalculatorSolve ax² + bx + c = 0 with the quadratic formula. Shows the discriminant, real or complex roots, the vertex and every step of the working.
- GCF and LCM CalculatorFind the greatest common factor and least common multiple of two or more numbers, with the prime factorization and the Euclidean algorithm steps.
- Prime Factorization CalculatorBreak any number into its prime factors, check whether it is prime, and list all of its divisors with the step-by-step factor tree.
- Permutation and Combination CalculatorCalculate permutations (nPr) and combinations (nCr) with or without repetition, plus factorials, with exact results and the formulas explained.
- Slope CalculatorFind the slope of a line from two points, plus the distance, midpoint, angle, y-intercept and the equation of the line in slope-intercept form.
- Volume CalculatorCalculate the volume of a cube, box, cylinder, sphere, cone or pyramid in any unit, with the result also shown in liters and gallons.
- Exponent CalculatorRaise any base to any power, including negative and fractional exponents, or find square, cube and nth roots. Results in plain and scientific notation.