Math Calculators
From basic percentages to statistical analysis and algebraic equations — precise tools with step-by-step results. Useful for students, teachers, and professionals.
Solve any percentage problem — what is X% of Y, X is what % of Y, and percentage change — all in one place.
Calculate →Add, subtract, multiply, or divide any two fractions. Returns simplified fraction, mixed number, and decimal.
Calculate →Full descriptive statistics from a list of numbers — mean, median, mode, range, variance, and both population and sample SD.
Calculate →Solve ax² + bx + c = 0. Shows both roots (real or complex), discriminant, and vertex coordinates.
Calculate →Break any number up to 10 million into its prime factors. Shows exponent notation and full list of divisors.
Calculate →What's in This Category
- Percentage — Three classic percentage calculations in one widget. No need to remember which formula applies.
- Fractions — Full arithmetic on proper, improper, and negative fractions. GCD-based simplification via Euclid's algorithm.
- Standard Deviation — Paste a dataset and get all descriptive stats instantly. Distinguishes population vs. sample formulas.
- Quadratic Solver — Uses the quadratic formula. Handles complex (imaginary) roots and shows the parabola vertex.
- Prime Factorization — Trial division algorithm. Works on numbers up to 10 million and lists all divisors.
Who These Are For
Students checking homework, teachers preparing examples, data analysts needing quick stats, and developers verifying algorithm output. All calculations run entirely in your browser — nothing is sent to a server.