Convert between metric and imperial units — length, weight, temperature, and more.
1 m = 0.001 km
1 m = 0.001 km
1. Upload
Select or drag your file onto the upload area.
2. Process
Your file is processed instantly — nothing is stored.
3. Download
Download your result with one click. Done.
Private by default
Client-side tools never upload your files. Server-side tools delete them immediately after processing.
No account needed
Just upload and go. No email, no password, no account — ever.
Works on any device
Fully browser-based. Works on desktop, tablet, and mobile with nothing to install.
Six categories: Length (mm to nautical miles), Weight (mg to imperial tons), Temperature (Celsius, Fahrenheit, Kelvin), Area (mm² to square miles including acres and hectares), Volume (ml to gallons including cups and tablespoons), and Speed (m/s to knots).
Convert between units across six categories: Length, Weight, Temperature, Area, Volume, and Speed. Covers metric and imperial units including millimetres to miles, kilograms to pounds, Celsius to Fahrenheit, and knots to km/h. Swap button reverses the conversion. Formula shown below results. Free, runs in your browser.