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1 mi = 1.609344 km
Open in Unit ConverterFormula
km = mi × 1.609344
How to convert
To convert miles to kilometers, multiply the value by 1.609344. For example, 2 mi = 3.218688 km.
Conversion table
| Miles (mi) | km |
|---|---|
| 0.25 mi | 0.402336 km |
| 0.5 mi | 0.804672 km |
| 1 mi | 1.609344 km |
| 2 mi | 3.218688 km |
| 3 mi | 4.828032 km |
| 5 mi | 8.04672 km |
| 10 mi | 16.09344 km |
| 13.1 mi | 21.0824064 km |
| 26.2 mi | 42.1648128 km |
| 50 mi | 80.4672 km |
| 100 mi | 160.9344 km |
About these units
Metric lengths step by powers of ten: 10 mm = 1 cm, 100 cm = 1 m and 1,000 m = 1 km. Imperial and US customary lengths have been defined exactly in metric since 1959: 1 inch = 2.54 cm, 1 foot = 12 inches = 30.48 cm, 1 yard = 3 feet = 0.9144 m and 1 mile = 1,760 yards = 1,609.344 m. Because these definitions are exact, the conversions on this page are exact up to rounding.
FAQ
› How do I convert mi to km?
1 mi = 1.609344 km. To convert, multiply the value by 1.609344: 2 mi = 3.218688 km.
› What is 1 km in mi?
1 km = 0.6213711922 mi. The reverse formula is mi = km ÷ 1.609344.
› How many centimeters are in an inch?
Exactly 2.54 cm. The international inch has been defined this way since 1959.
› How do I convert a height in feet and inches?
Multiply the feet by 30.48 and the inches by 2.54, then add them: 5 ft 10 in = 152.4 + 25.4 = 177.8 cm.