Convertium

Convertium is a fast, lightweight unit converter that works completely offline. Convert between common units of length, weight, volume, temperature, and speed instantly as you type — no internet required, no ads, no data collection.

FEATURES
- Five conversion categories: Length, Weight, Volume, Temperature, and Speed
- Real-time conversion: results update instantly as you type each digit
- Pin your most-used conversions to the Favorites tab for quick access
- Clean, distraction-free interface with a warm retro-inspired design
- Works 100% offline — no internet connection needed, ever
- No ads, no in-app purchases, no account required
- Zero data collection — your privacy is fully respected

SUPPORTED UNITS
Length: Millimeter, Centimeter, Meter, Kilometer, Inch, Foot, Yard, Mile
Weight: Milligram, Gram, Kilogram, Pound, Ounce, Metric Ton
Volume: Milliliter, Liter, US Gallon, Quart, Pint, Cup, Fluid Ounce, Tablespoon, Teaspoon
Temperature: Celsius, Fahrenheit, Kelvin
Speed: Meters/sec, Kilometers/hr, Miles/hr, Knots, Feet/sec

HOW IT WORKS
1. Select a category tab (Length, Weight, Volume, Temperature, or Speed)
2. Choose the unit you want to convert from
3. Start typing a number — all other units update in real time
4. Tap the star icon on any result to save it as a favorite

Convertium is designed for anyone who needs quick, reliable unit conversions: students, professionals, travelers, cooks, DIY enthusiasts, and everyday users.