Convert Miles to KM
Convert miles to kilometres for distance and speed.
Miles to KM Converter
Universal unit converter engine
What does Miles to KM Converter do?
Convert miles to kilometres exactly, with a speed mode for mph to km/h and references for common road distances and speed limits.
How to Use Miles to KM Converter
- 1Enter a distance in milesOr switch to speed mode.
- 2Read the kilometresAt your chosen precision.
- 3Use the referencesFor speed limits and common distances.
Key Features
- Exact conversion: 1 mile = 1.609344 km
- Speed mode converting mph to km/h
- Nautical miles shown as a separate unit
- Reference table from 1 to 200 miles
- Two-way conversion built in
Frequently Asked Questions
How many km is 1 mile?
Exactly 1.609344 km. For mental arithmetic, add 60% — 20 miles becomes 20 + 12 = 32 km, against the exact 32.19.
What is 60 mph in km/h?
96.56 km/h, usually rounded to 100 km/h as the equivalent motorway limit. 70 mph is 112.65 km/h.
Is a nautical mile the same as a mile?
No. A nautical mile is 1,852 metres, about 15% longer than a statute mile of 1,609 metres. It is used in marine and air navigation.
Why is a mile 1,760 yards?
It comes from the Roman mille passus — a thousand double paces, about 5,000 feet. The English mile was later fixed at 5,280 feet so it would be a whole number of furlongs, which mattered for land measurement.
Conversions run in your browser using fixed, published factors. Nothing you enter is transmitted, and the tool keeps working with the network disconnected.
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