Math & Statistics
Scientific math, equations, geometry, matrices and statistics. 38 focused utilities.
Scientific Calculator
Evaluate advanced expressions with trigonometry, logs, powers, constants and functions.
Percentage Calculator
Find percentages, percentage-of values and reverse percentages.
Percentage Change Calculator
Calculate percentage increase or decrease between two values.
Ratio Calculator
Simplify ratios and scale a ratio to a target value.
Proportion Solver
Solve a:b = c:x proportions instantly.
Fraction Calculator
Add, subtract, multiply and divide fractions with simplification.
Quadratic Equation Solver
Solve ax² + bx + c = 0, including complex roots.
Linear Equation Solver
Solve ax + b = c.
2×2 Equation System Solver
Solve two simultaneous linear equations.
Polynomial Evaluator
Evaluate polynomial coefficients at any x value.
Mean Median Mode
Compute mean, median, mode, range and count.
Standard Deviation
Calculate population and sample standard deviation.
Variance Calculator
Calculate population and sample variance.
Z-Score Calculator
Calculate a z-score from value, mean and standard deviation.
Combinations & Permutations
Calculate nCr and nPr exactly.
Factorial Calculator
Calculate n! for non-negative integers.
GCD & LCM Calculator
Find greatest common divisor and least common multiple.
Prime Number Checker
Check whether an integer is prime.
Prime Factorization
Decompose an integer into prime factors.
Fibonacci Calculator
Generate Fibonacci numbers and find the nth term.
Logarithm Calculator
Calculate logarithms with any positive base.
Exponent Calculator
Calculate x raised to any power.
Nth Root Calculator
Calculate square, cube and arbitrary real roots.
Trigonometry Calculator
Calculate sin, cos and tan in degrees or radians.
Matrix Determinant
Calculate determinants for square matrices.
Matrix Inverse
Invert a square matrix when an inverse exists.
Matrix Multiplication
Multiply two compatible matrices.
Complex Number Calculator
Perform arithmetic with complex numbers.
Circle Calculator
Radius, diameter, circumference and area.
Triangle Calculator
Calculate area, perimeter and basic triangle properties.
Rectangle Calculator
Calculate rectangle area, perimeter and diagonal.
Sphere Calculator
Calculate sphere volume and surface area.
Cylinder Calculator
Calculate cylinder volume and surface area.
Cone Calculator
Calculate cone volume, slant height and surface area.
Pythagorean Theorem
Solve for a missing side of a right triangle.
Distance Between Points
Find Euclidean distance between two 2D points.
Midpoint Calculator
Find the midpoint between two coordinates.
Slope Calculator
Calculate slope between two coordinate points.