ConvertDroid: Unit Converter

Convert almost anything, instantly. ConvertDroid packs 673 units in 68 categories into one clean, fast unit converter that works offline — no account, no fumbling through menus. EVERY UNIT YOU'LL ACTUALLY NEED - Length, mass, area, volume, temperature, pressure, speed, density, concentration (by mass and by mole), force, torque, moment of inertia, angle, angular speed, angular acceleration, volumetric flow, viscosity (dynamic and kinematic), and sound level - Energy, power, electrical resistance, electric current, resistivity, frequency, and time period - Luminance, illuminance, radioactivity, radiation absorbed dose, radiation exposure, radiation dose rate, and Carbon-14 dating - Data storage, data transfer rate (now including USB 3/4, Thunderbolt, and WiFi 4-7), transfer-time estimates, video timecode & frame rates, video file size, numeral systems (binary, octal, hex, Base-36, RGB, Unicode), typography (points, picas, twips), and musical intervals - Everyday time, fuel economy (US, UK & metric mpg), navigation bearings, and SI prefixes - Aviation: altitude, vertical speed, airspeed, altimeter setting, Jet A and Avgas 100LL fuel weight and volume, fuel flow, and visibility - 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 - Tap any result to copy it straight to your clipboard - Type "1h 30m" or "30m 1h" — flexible, tolerant input for multi-part values - Search across all 673 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 dedicated layouts for portrait, landscape, and Tablet Split View. FREE, WITH AN OPTIONAL ONE-TIME UPGRADE ConvertDroid is free to use, with a small banner ad. A one-time Remove Ads purchase turns ads off for good — no subscription — and Restore Purchases brings it back on a new device. Bought ConvertDroid before it became free? Thank you! Your copy stays ad-free automatically. YOUR CONVERSIONS STAY ON YOUR DEVICE Your conversions, favorites, history, and settings never leave your device, and there's no account to create. Ads are non-personalized, and our privacy policy explains exactly what the ad provider processes to show them. Whether you're cooking, running lab calculations, buying shoes abroad, checking a fuel load, reading a datasheet's resistor bands, or figuring out how long a file takes to transfer over Thunderbolt or WiFi 7, ConvertDroid has the unit for it.