What is the KM to Miles Converter?
Distances in Pakistan, the Gulf and Europe are in kilometres, while the UK and USA use miles for roads and speed limits. Runners also switch between them for 5K, 10K and marathon distances.
The converter works both ways. For speed (km/h to mph) open the Speed Converter; for fuel cost of a trip use the Petrol Cost Calculator.
How to use the KM to Miles Converter
- Type the value in km into the box.
- Read the answer in miles instantly; extra units are shown below it.
- Click miles → km to convert the other way.
- Use the conversion table for common values.
Formula
miles = km × 0.621371
Example
The Lahore–Islamabad motorway distance of about 380 km is roughly 236 miles. A 10K race is 6.21 miles.
km to miles conversion chart
| Kilometres | Miles |
|---|---|
| 1 km | 0.621 mi |
| 5 km | 3.107 mi |
| 10 km | 6.214 mi |
| 21.1 km (half marathon) | 13.1 mi |
| 42.195 km (marathon) | 26.2 mi |
| 100 km | 62.137 mi |
| 500 km | 310.686 mi |
When do you need to convert km to miles?
- Planning a road trip in the UK or USA where signs are in miles.
- Converting running distances such as 5K, 10K and marathons.
- Reading car fuel economy and range quoted in miles.
- Comparing flight distances and air miles.
Quick mental trick
Multiply kilometres by 6 and divide by 10. 80 km × 6 ÷ 10 = 48 miles (exact: 49.7). For miles to km, multiply by 1.6.
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Frequently asked questions
How many miles is 1 km?
1 kilometre is 0.621371 miles.
How many km is 1 mile?
1 mile is 1.609344 kilometres.
How far is a 5K in miles?
5 km is about 3.1 miles.
How do I convert km/h to mph?
Multiply by 0.621371. 120 km/h is about 74.6 mph.
Is a nautical mile the same as a mile?
No. A nautical mile is 1.852 km, longer than a land mile.
Is the KM to Miles Converter free to use?
Yes. The KM to Miles Converter on Custom Converter is completely free, with no sign-up, no daily limit and no watermark.
Does the KM to Miles Converter work on mobile phones?
Yes. It is built mobile-first and works on Android phones, iPhones, tablets and computers in any modern browser, with no app to install.