Unit Converter by JONACADIA puts 256 units across 13 categories in one offline conversion calculator. Convert temperature, length, weight, speed, volume and more, with results that update as you type.

Switch between metric, US customary and Imperial units for everyday tasks. Convert Celsius to Fahrenheit, centimeters to inches, kilograms to pounds or liters to US gallons. Useful for travel, cooking measurements, DIY projects and study.

13 conversion categories
- Temperature: Celsius, Fahrenheit, Kelvin and more.
- Length / Distance: millimeters, centimeters, meters, kilometers, inches, feet, yards and miles.
- Weight / Mass: milligrams, grams, kilograms, ounces, pounds and stones.
- Volume: liters, milliliters, cups, teaspoons, tablespoons, and US and Imperial gallons.
- Speed: km/h, mph, m/s and knots.
- Area: square meters, square feet, acres and hectares.
- Pressure: Pa, kPa, bar and PSI.
- Digital Storage: bits, bytes, kB, MB, GB, KiB, MiB and GiB.
- Energy: joules, calories, kilocalories, watt-hours, kilowatt-hours and BTU.
- Power: watts, kilowatts, mechanical and metric horsepower.
- Angle: degrees, radians, gradians and revolutions.
- Frequency: Hz, kHz, MHz, GHz and RPM.
- Data Transfer Speed: bits per second, bytes per second, Mbps and MB/s.

Choose units and get results
Find a category by searching for its name or one of its units. Tap either purple unit button to choose your input and output units. Swap exchanges the units while keeping the number you entered. Copy Result copies the converted value with its unit. Each category keeps its own entry during your current session.

Made for your phone
- Portrait layout puts the keypad below the values; landscape places it beside them.
- Choose a maximum of 2, 4, 6 or 8 decimal places.
- Scientific notation keeps very small and large results readable.
- Hold backspace to delete repeatedly.
- Turn keypad vibration on or off. Vibration follows your phone settings.
- Learn the controls with an optional walkthrough, then replay it anytime from Settings.
- Dark background, purple controls and rounded buttons.

Offline and private
All conversions run on your device. No ads, accounts, tracking, analytics or network access. The app requests no Android permissions. Read the complete privacy policy inside the app.

Clear unit definitions
US and Imperial volumes and metric cooking measures are labeled separately. Decimal storage (kB, MB, GB) and binary storage (KiB, MiB, GiB) are distinct, as are bits and bytes, mechanical and metric horsepower, and calorie definitions.

Results are rounded for display. This app converts numbers; it does not measure physical quantities. Cups-to-grams conversions are not included because they depend on the ingredient.

Support: jonacadia.apps@gmail.com