Percentage, fractions, statistics, algebra — solve everyday math problems instantly. All calculations run privately in your browser.
Calculate X% of Y, find what percent X is of Y, or percent change.
Find absolute and percentage change between two values.
Mean, median, mode, sum, min, max, and standard deviation from a list.
Add, subtract, multiply, and divide fractions. Simplified results.
Simplify ratios and split a total proportionally between two values.
Generate random integers in a range. Optional unique numbers.
Calculate n! for any non-negative integer up to 170.
Find greatest common divisor and least common multiple of two numbers.
Check if a number is prime and list all divisors.
Sample or population standard deviation and variance from data.
Solve ax² + bx + c = 0. Real and complex roots with discriminant.
Calculate log with any base plus ln, log₁₀, and log₂.