Math Tools
Calculate percentages, ratios, averages, and probabilities. Convert scientific notation, generate Fibonacci sequences, check prime numbers, and convert numbers to words. Fast, browser-based math utilities for developers and students.
Calculate mean, median, mode, range, and standard deviation.
Perform arithmetic on binary numbers. See results in binary, decimal, and hex.
Generate Fibonacci sequences and check if a number is Fibonacci.
Perform arithmetic on hexadecimal numbers. See results in hex and decimal.
Convert numbers to English words. Supports integers, decimals, and negatives.
Calculate percentages: find X% of Y, what % X is of Y, or % change.
Check if a number is prime and generate primes up to N.
Calculate probability as fraction, decimal, percentage, and odds.
Pick random items from a list with optional duplicates.
Solve ratios, simplify A:B, and find missing values.
Convert between standard numbers and scientific notation.
FAQ
- How do I calculate a percentage?
- Enter the part and the whole, and the tool calculates the percentage. It also supports reverse calculations: what is X% of Y, and X is what % of Y.
- Can I convert numbers to words?
- Yes. Enter any number and the tool converts it to English words. Supports integers and decimals, positive and negative numbers.
- What math operations are available?
- Percentage, ratio, average/mean/median, probability, hex arithmetic, binary arithmetic, scientific notation, Fibonacci sequences, and prime number checking.