Math Tools

Generate a printable-style multiplication chart online for quick classroom and homework reference.

Check prime numbers online and review factor counts, nearby primes, and composite results quickly.

Convert between Roman numerals and standard numbers in a lightweight browser-based tool.

Calculate with fractions online and review the simplified result as a fraction, decimal, and percent.

Split a bill faster by calculating tip, total cost, and per-person share in one screen.

Work out final price, total savings, and tax impact before buying or pricing something.

Paste values to get fast summary stats without touching spreadsheet formulas.

Work out simple percentages, changes, and comparisons without opening a spreadsheet.

Pick random numbers for games, samples, classroom activities, and quick decisions.