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Convert units and currencies on your watch, with live rates and a handy tile.
Convertr is a unit converter built for the round screen of your Wear OS watch. Pick a category, tap the number, type a value and read the result. No phone needed. 18 categories and 177 units: length, temperature, weight, currency, speed, volume, area, time, pressure, fuel consumption, energy, power, frequency, data, angle, data rate, torque and density. Metric, imperial and US units side by side, from millimetres to nautical miles and from teaspoons to cubic metres. Currency covers 71 currencies with live exchange rates. The last rates are stored on the watch, so conversions keep working offline, and the screen always shows how old the rates are (for example "offline · 2d old"). Rates are fetched from open.er-api.com without any account or personal data. Temperature and fuel consumption are converted with their real formulas, not a single factor: °C, °F and K, and L/100 km, km/L, mpg (US) and mpg (UK). A round number pad that follows the shape of the screen, with decimal point, plus/minus and backspace. One tap swaps the two units. Star a conversion to pin it as a favourite at the top of the list, up to eight. The app opens where you left off. The tile shows your last conversion in large type, with quick buttons for your recent conversions. Tap a button to switch the tile, or tap the tile to open the conversion in the app. No ads, no account, no tracking. Everything except the exchange rates works fully offline.