Unit Converter: All in One – Offline Unit Conversion App
A free offline app that converts units across 19+ categories, from length and currency to torque and fuel consumption.
- Industry
- Platforms
- iOS, Android
- Store category
- Productivity
- Country
- India
- Built with
- Flutter
- Laravel
The project
Unit Converter: All in One is a free iOS and Android app that converts units across more than 19 categories used in daily life. Users convert length, area, volume, time, temperature, speed, mass, force, pressure, energy, power and angles, plus less common categories such as torque, digital data, SI prefixes, fuel consumption, numeral systems and shoe sizes. Currency conversion uses real-time exchange rates, and everything else works offline. We built the app in Flutter, with Laravel behind it, and published it under our own developer account.
The challenge
- People forget the formulas for everyday conversions and end up searching the web each time.
- Most converter apps stop at the common units and skip categories such as torque, fuel consumption or SI prefixes.
- Conversions are often needed where there is no internet connection.
What we built
- One app with 19+ unit categories on a single home screen.
- Offline conversion for every category except live currency rates.
- Real-time exchange rates for converting between world currencies.
- Extra maths, finance and compass tools in the same app, with light and dark themes.
Screens
Key features
19+ unit categories
Length, area, volume, mass, speed, pressure, energy, power and more in one place.
Specialist units
Torque, digital data, SI prefixes and fuel consumption alongside the everyday units.
Currency converter
World currencies converted at real-time exchange rates.
Works offline
Unit conversions run without an internet connection.
Shoe size converter
Sizes in centimetres, inches and EU, UK, US and Japanese systems.
Numeral systems
Convert between decimal, hexadecimal, octal and binary.
