Unit Converter
betaA fast, accurate unit converter for everyday measurements — length, mass, temperature, area, volume, speed, time and digital storage. Pick a category, type a value, and read the converted result instantly. All conversions run in your browser with no rounding surprises; nothing is uploaded.
Convert between units of length, mass, temperature, area, volume, speed, time and digital storage. Type a value and read the result instantly — everything is computed in your browser.
How to use Unit Converter
- 1 Choose a category (length, mass, temperature, …).
- 2 Type the value you want to convert.
- 3 Pick the “from” and “to” units.
- 4 Read the result instantly, or hit Swap to reverse the direction.
Frequently asked questions
Is anything uploaded?
No. The converter runs entirely in your browser — your values never leave your device.
How do I convert km to miles or kg to lb?
Pick the Length or Mass category, type your value, then set the units (e.g. km → mi, or kg → lb). The result updates as you type.
How is temperature handled?
Temperature uses proper affine conversions, so 100 °C correctly gives 212 °F and 0 °C gives 273.15 K — not a naive multiply.
Does it cover both metric (1000) and binary (1024) data sizes?
Yes. Digital storage includes both decimal units (KB, MB, GB = 1000) and binary units (KiB, MiB, GiB = 1024).
Does it work offline?
Yes. PDFPowerHub is a PWA, so once loaded the converter works with no internet connection.