Number Tools
Collection of handy calculators and converters for everything from arithmetic to number theory. Explore tools for percentages, prime checks, rounding, fractions, averages, base conversion and more.
Percentage Calculator
Free online percentage calculator for discounts, tips and percent change. Instantly find percentage increase, decrease and what percent one number is of another.
Random Number Generator
Generate random numbers within any range, one at a time or in bulk. Ideal for games, sampling, lotteries, or anywhere you need unpredictable values.
Prime Number Checker
Instantly check if any whole number is prime or composite. Great for students learning about number theory or for quick verifications in coding and math tasks.
Factorial Calculator
Compute factorials for small integers instantly. Supports typical homework problems and quick math checks, delivering results for any number you enter.
Roman Numeral Converter
Convert any number to Roman numerals or back again with a single click. Perfect for history projects, date notation, or learning how ancient numbers work.
Number Base Converter
Easily convert numbers between decimal, binary, octal and hexadecimal. Perfect for developers, students and anyone working across different numeral systems.
Average & Median Calculator
Calculate the average (mean) and median for any set of numbers. Quickly analyze data sets and see central tendency at a glance.
GCD/LCM Calculator
Quickly find the greatest common divisor and least common multiple of any two numbers. Perfect for simplifying fractions or solving math problems.
Number Rounding Tool
Round any number to your desired number of decimal places. Useful for financial calculations, statistics or whenever you need cleaner, easier-to-read figures.
Fraction & Decimal Converter
Convert fractions to decimals and decimals to fractions with ease. Ideal for homework or cooking conversions, this tool ensures accurate results every time.