Unit Tools
Convert between measurement units.
Convert
Convert developer units online
Dev Unit Tools converts the units programmers actually deal with day to day — data sizes, sub-second time, angles, and frequencies — including the binary-vs-decimal distinction that trips people up.
Why use this tool
Binary vs decimal data units
Correctly distinguishes KB (1000 bytes) from KiB (1024 bytes), MB from MiB, and so on — the source of countless 'why is my file size wrong' bugs.
Sub-second time units
Convert between nanoseconds, microseconds, milliseconds and seconds — handy for reading profiler and benchmark output.
Angles & frequency
Degrees, radians, gradians, turns, and Hz/kHz/MHz/GHz conversions for graphics, audio, and signal-processing work.
Instant, private
No page reload, no upload — conversion happens as you type.
How it works
- 1Choose a unit family: Data size, Time, Angle, or Frequency.
- 2Enter a value and pick the From/To units.
- 3Copy the converted result.
Frequently asked questions
Good to know
- KB vs KiB matters — 1 KB = 1000 bytes, 1 KiB = 1024 bytes. Operating systems often mislabel one as the other.
- Useful for reading server logs, API rate limits, and profiler output.
- Runs fully in your browser — nothing is uploaded.