Length Converter
Convert between metric and imperial length units instantly.
Your conversions appear here
Enter a length and pick its unit. Every other unit is calculated live as you type — right here in your browser, with nothing sent to a server.
Runs entirely in your browserConvert any length unit, locally
This converter turns a single length value into every other supported unit at once. Type a number, choose the unit it is in, and the full conversion table updates as you type. It covers metric units — kilometre, metre, centimetre, millimetre — and imperial units — mile, yard, foot and inch. Each conversion goes through metres as a common base, so results stay consistent no matter which unit you start from. Everything runs in your browser and nothing you type is uploaded anywhere.
Common questions
How many feet are in a metre?
One metre is about 3.28084 feet. Enter 1 and select metre, and the results list shows the exact value in feet, inches, yards and miles at the same time.
How do I convert kilometres to miles?
Type your distance, select kilometre as the unit, and read the mile row in the results. One kilometre equals roughly 0.621371 miles.
Which units does this length converter support?
Metre (m), kilometre (km), centimetre (cm), millimetre (mm), mile (mi), yard (yd), foot (ft) and inch (in).
Why do I see “—” instead of results?
That appears when the value box is empty or is not a valid number. Enter a finite number and the full conversion list appears instantly.
Are the values I type sent anywhere?
No. All conversions run entirely in your browser with JavaScript. Nothing you enter is uploaded or stored on a server.