Kilometres to Miles Converter
Type a value in kilometres to see it in miles. It works both ways: type in the miles box to convert back.
Formula
To convert kilometres to miles, divide by 1.609344 (the same as multiplying by 0.6213711922).
1 km = 0.621371192237 mi and 1 mi = 1.609344 km.
Kilometres to miles table
| Kilometres | Miles |
|---|---|
| 1 km | 0.6213712 mi |
| 2 km | 1.242742 mi |
| 3 km | 1.864114 mi |
| 5 km | 3.106856 mi |
| 10 km | 6.213712 mi |
| 15 km | 9.320568 mi |
| 21.1 km | 13.11093 mi |
| 42.2 km | 26.22186 mi |
| 50 km | 31.06856 mi |
| 100 km | 62.13712 mi |
| 200 km | 124.2742 mi |
| 500 km | 310.6856 mi |
Worked examples
2 km in miles
2 km
1.242742 mi
2 × 0.6213711922 = 1.242742384
21.1 km in miles
21.1 km
13.11093 mi
21.1 × 0.6213711922 = 13.11093216
200 km in miles
200 km
124.2742 mi
200 × 0.6213711922 = 124.2742384
About Kilometres to Miles Converter
This converter turns kilometres into miles as you type, and works the other way too: type in the miles box to convert back. To convert kilometres to miles, divide by 1.609344 (the same as multiplying by 0.6213711922). For example, 2 km is 1.242742 mi, and 21.1 km is 13.11093 mi.
The UK uses metric units for most measurements, but road signs are in miles and yards, and many people still think of height in feet and inches, so length conversions come up every day. Both units have exact definitions, so the converter gives an exact result, rounded only for display. Use the table below for common values, or set the decimal places to round the answer for a form or a label.
How to use Kilometres to Miles Converter
- Type the amount in kilometres in the first box.
- Read the answer in miles in the second box and in the result line below.
- To convert the other way, type in the miles box instead, or use the swap button to open the miles to kilometres page.
- Choose a number of decimal places if you need a rounded figure, then copy the result line.
Common uses
- Checking a product size listed in another system
- Following plans, patterns or instructions from abroad
- Converting a height or a distance for a form
- Helping with homework that mixes metric and imperial units
Frequently asked questions
How many miles are in one kilometre?
There are 0.6213711922 miles in one kilometre. This figure is exact, because both units have fixed definitions.
How do I convert kilometres to miles?
To convert kilometres to miles, divide by 1.609344 (the same as multiplying by 0.6213711922). For example, 200 km is 124.2742 mi.
How do I convert miles to kilometres?
Going the other way, multiply by 1.609344. The miles to kilometres converter does this for you.
What is 50 km in miles?
50 km is 31.06856 mi.
Why does the UK still use miles?
Road distances and speed limits stayed in miles and yards when the UK moved to metric units for trade and science. The Weights and Measures Act allows miles, yards, feet and inches for road traffic signs, so you will meet both systems.