Unit Converter
Convert length, weight, temperature, area, and volume
100% In-BrowserNo Server UploadFree, No Signup
Math & CalculationHow to Use
- Select category and source unit
Choose the category (length, weight, temperature, area, volume) and source unit from the toolbar.
- Enter a number
Enter the value to convert. All units in the same category are shown automatically.
- Copy result
Use the "Copy" button to copy the results to your clipboard.
Unit Converter Examples
Length conversion (1 meter)
Input
1Output
1,000 mm
100 cm
1 m
0.001 km
39.3701 in
3.28084 ft
1.09361 yd
0.000621371 miResult when source unit is "m".
Temperature conversion (100 degrees)
Input
100Output
100 °C
212 °F
373.15 KResult when source unit is "°C".
Features
- 5 categories: length, weight, temperature, area, volume
- All units displayed at once
- Temperature: Celsius, Fahrenheit, Kelvin
- Real-time conversion (auto-updates on input)
- High-precision decimal display
- Local processing (your input is not sent to servers)
- Dark mode support
FAQ
Which unit categories are supported?
Length (mm/cm/m/km/in/ft/yd/mi), weight (mg/g/kg/lb/oz), temperature (C/F/K), area (mm2/cm2/m2/km2/ft2/acre), and volume (ml/l/gal/fl oz/cup).
Are the temperature formulas accurate?
Yes. Standard formulas are used: C=(F-32)*5/9, K=C+273.15, etc.
Is my data sent to a server?
No. All conversion happens locally in your browser via JavaScript. No data is ever transmitted externally.