ConvertDroid: Unit Converter

The Zardoz Group

About this app

Convert almost anything, instantly. ConvertDroid packs 444 units across 46 categories into one clean, fast, offline unit converter — no ads, no account, no fumbling through menus.

EVERY UNIT YOU'LL ACTUALLY NEED
- Length, mass, area, volume, temperature, pressure, speed, density, force, torque, angle, angular speed, volumetric flow
- Energy, power, electrical resistance, frequency, and time period
- Luminance, illuminance, radioactivity, and Carbon-14 dating
- Data storage, data transfer rate, transfer-time estimates, video timecode & frame rates, video file size, and numeral systems (binary, octal, hex, Base-36, RGB, Unicode)
- Everyday time, fuel economy (US, UK & metric mpg), navigation bearings, and SI prefixes
- International clothing & size charts: men's and women's suits, shirts, shoes, socks, dresses, blouses, stockings, bra band & cup sizes, ring sizes, and hat sizes — across US, UK, EU, Japanese, French, Italian, and Australian systems

BUILT TO ACTUALLY USE, NOT JUST BROWSE
- Custom in-app keypad — no clumsy system keyboard
- Search across all 316 units to jump straight to what you need
- Star up to 12 favorites for one-tap access
- Automatic history of your last 50 conversions
- Adjustable decimal precision and thousands separator (comma or space)

DESIGNED WITH CARE
A warm, neubrutalist look — bold borders, hard shadows, a cream-and-orange palette — built for phone and tablet alike, with a dedicated landscape and iPad layout including a persistent category sidebar.

PRIVATE BY DESIGN
Everything runs on your device. No account, no tracking, no network calls required — your conversions stay yours.

Whether you're cooking, studying physics, buying shoes abroad, reading a datasheet's resistor bands, or figuring out how long a 4K file takes to transfer over USB, ConvertDroid has the unit for it.