📏 Kilometers to Miles Converter
Convert kilometers (km) to miles (mi) instantly, with the formula, a worked example and a conversion table.
Quick answer: 1 kilometer (km) = 0.62137119 miles (mi). Formula: mi = km × 0.62137119.
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Kilometers to Miles Converter inputs
Result
Kilometers to Miles conversion table
| Kilometers (km) | Miles (mi) |
|---|---|
| 0.1 km | 0.062137119 mi |
| 0.5 km | 0.3106856 mi |
| 1 km | 0.62137119 mi |
| 2 km | 1.2427424 mi |
| 3 km | 1.8641136 mi |
| 5 km | 3.106856 mi |
| 10 km | 6.2137119 mi |
| 20 km | 12.427424 mi |
| 25 km | 15.53428 mi |
| 50 km | 31.06856 mi |
| 100 km | 62.137119 mi |
| 1,000 km | 621.37119 mi |
Other length conversions
km to mmkm to cmkm to mkm to inkm to ftkm to ydkm to mikm to nmi
How to convert kilometers to miles
Multiply the number of kilometers by 0.62137119 to get miles: mi = km × 0.62137119.
Example: 5 km = 3.106856 mi.
The kilometer (km) and the mile (mi) are both units of length. Need the opposite direction? Use the mi to km converter.
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Metric and imperial units
The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.
Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.
This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.
Frequently asked questions
How many miles are in a kilometer?
1 kilometer = 0.62137119 miles.
How do I convert kilometers to miles?
Use the formula mi = km × 0.62137119. For example, 5 km = 3.106856 mi.
How do I convert miles back to kilometers?
1 mile = 1.609344 kilometers. Use the mi to km converter linked on this page.
Are these conversions exact?
Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.