Math & Numbers tools
Percentage, ratio, fraction, statistics, prime, factorial, matrix and rounding calculators plus number-base conversion and random sampling.
17 tools in this category · 4 sub-categories
Finance
Matrix Calculator
Add, multiply, transpose, and invert matrices with an editable grid.
GCD & LCM Calculator
Find the greatest common divisor and least common multiple of numbers.
Compound Interest Calculator
Project investment growth with compounding and recurring contributions.
Loan & EMI Calculator
Calculate monthly loan payments, total interest, and view the full amortization schedule.
Tip & Bill Split Calculator
Calculate tip amount and split the bill evenly among a group.
Discount & Sales Tax Calculator
Calculate a discounted price plus sales tax and total savings.
Health & Everyday
Numbers & Algebra
Fraction Calculator
Add, subtract, multiply, divide, and simplify fractions.
Prime Checker
Check primality, factorize numbers, list primes, and compute GCD/LCM.
Scientific Notation Converter
Convert between decimal, scientific, and engineering notation.
Quadratic Equation Solver
Solve ax² + bx + c = 0 with real or complex roots.
Logarithm & Exponent Calculator
Compute logarithms of any base and exponentiation results.
Number Sequence Generator
Generate arithmetic, geometric, or Fibonacci-like number sequences.
Statistics
Percentage Calculator
Calculate X% of Y, percent change, and reverse percentages.
Statistics Calculator
Compute mean, median, mode, variance, and more from a list of numbers.
Ratio Calculator
Solve, simplify, and scale ratios and aspect ratios.
Rounding Calculator
Round, floor, ceil, or truncate a list of numbers to decimals or multiples.
About math & numbers tools
Quick calculators for percentages, ratios, fractions, statistics, loans, interest, matrices and equations, with step-by-step results where it helps.