Unit Converter
Convert between metric and imperial units for length, weight, volume, and area.
Kilometre (km)
0.001
Centimetre (cm)
100
Millimetre (mm)
1,000
Micrometre (μm)
1,000,000
Nanometre (nm)
1,000,000,000
Mile (mi)
0.0006213712
Yard (yd)
1.093613298
Foot (ft)
3.280839895
Inch (in)
39.37007874
- 100% free — no account needed
- Runs in your browser
- Nothing is uploaded
Frequently asked questions
Is Unit Converter really free?
Yes. Unit Converter is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.
Does Unit Converter upload my data?
No. Unit Converter runs entirely inside your browser, so anything you type, paste, or open stays on your own device.
Do I need to sign up or install anything?
Neither. There is no account and nothing to download — open the page and Unit Converter is ready to use on desktop or mobile.
Does Unit Converter work offline?
Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.
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