Number & Unit Format Converter
Convert number bases, data sizes, temperature, and length — or format a number as words, locale grouping, or scientific notation. All in your browser.
Tool interface
Result
Ready.
Introduction
Unit and format conversions are small, frequent tasks. This tool handles the common ones in one place without uploading anything.
Limitations
- Base conversion works on integers.
- Number-to-words supports magnitudes up to trillions.
FAQ
Why is my disk smaller than advertised?
Vendors use decimal GB (10⁹); operating systems report binary GiB (2³⁰), which is about 7% fewer.