Math
20 calculators
Percentage Calculator
PopularCalculate percentages instantly: X% of Y, X is what % of Y, or percentage change.
Percentage Change Calculator
PopularCalculate percent change between two values: ((new − original) / |original|) × 100.
Scientific Notation Converter
PopularConvert numbers between standard, scientific, and engineering notation instantly.
Average Calculator
Calculate mean, median, mode, sum, and range for any list of numbers.
Exponent Calculator
Calculate powers and exponents. Find base^exponent, expanded notation, and scientific notation.
Fraction Calculator
Simplify fractions and perform addition, subtraction, multiplication, and division with exact results.
GCD and LCM Calculator
Calculate the greatest common divisor and least common multiple of two numbers.
Logarithm Calculator
Calculate logarithms with any base. Find log, ln, log₁₀, and log₂ in one step.
Prime Factorization Calculator
Decompose any number into its prime factors and view the exponent notation.
Pythagorean Theorem Calculator
Find the missing side of a right triangle using the Pythagorean theorem.
Quadratic Equation Solver
Solve ax²+bx+c=0 and find roots, discriminant, vertex, and axis of symmetry.
Ratio Simplifier
Simplify any ratio to its lowest terms and see equivalent scales.
Square Root Calculator
Calculate square roots and nth roots, check perfect squares, and simplify radical expressions.
Standard Deviation Calculator
Calculate population and sample standard deviation, variance, and mean for your dataset.
Triangle Calculator
Solve triangles using sides and angles. Calculate missing sides, angles, area, and type.
Combinations & Permutations Calculator
Calculate nCr (combinations) and nPr (permutations) for any n and r instantly.
Factorial Calculator — n! for Any Integer
Compute the factorial of any integer from 0 to 170, including large numbers using arbitrary precision.
Matrix Calculator
Add, subtract, multiply 2×2 and 3×3 matrices, calculate determinants.
Descriptive Statistics Calculator
Get complete statistical summary: min, max, mean, median, mode, quartiles, variance, and standard deviation.
Z-Score Calculator
Calculate z-scores, percentiles, and p-values to standardize and interpret data relative to a normal distribution.