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Miles → Kilometers

Convert miles to km or km to miles — updates as you type.

What is a miles to km converter and how many kilometers are in a mile?

Miles and kilometers both measure distance. The mile, used on US and UK roads, is defined as exactly 1.609344 kilometers, while the kilometer, 1,000 meters, is the standard distance unit in most other countries. To convert miles to km, multiply by about 1.609. To go from kilometers to miles, divide by the same number, or multiply by about 0.621. A kilometer is therefore a bit more than six tenths of a mile.

People convert miles and kilometers for travel abroad, where road signs, speed limits and rental car odometers use kilometers; for running and cycling, where race distances like the 5K, 10K and marathon are set in kilometers; and for work such as logistics, mileage logs and reading maps or specifications from other countries. Speed converts the same way, so 65 miles per hour is about 104.6 km/h. Rounding the factor to 1.6 is fine for rough estimates, but on long trips the difference grows: 1,000 miles is 1,609 km, not 1,600.

To use this converter, type a distance into the Miles box and the equivalent in kilometers appears as you type. It also works in reverse: enter a value in the Kilometers box to see miles. Decimals are accepted, so race and trip distances like 13.1 or 26.2 miles convert directly. The tool uses 1 mile = 1.60934 km and rounds results to two decimal places, which is more than precise enough for trip planning, training logs or reading signs. The chart below lists common running, driving and travel distances for quick reference.

How to convert miles to kilometers

Multiply miles by 1.60934 to get kilometers. Formula: km = miles × 1.60934. Example: 26.2 miles × 1.60934 = 42.16 km.

To convert kilometers to miles, divide by 1.60934 (or multiply by about 0.62137). Example: 10 km ÷ 1.60934 = 6.21 miles.

Miles to kilometers conversion chart

MilesKilometers
11.61
23.22
3.14.99
58.05
1016.09
13.121.08
2032.19
2540.23
26.242.16
5080.47
100160.93
500804.67

Formula

1 mile = 1.60934 km

Miles to Kilometers Converter FAQ

How many km in a mile?

1 mile = 1.609 km.

What is 100 miles in km?

100 miles = 160.93 km.

How many miles is a 5K?

A 5K is 5 kilometers, or about 3.11 miles. A 10K is about 6.21 miles.

How many kilometers is a marathon?

A marathon is 42.195 km, or about 26.22 miles. A half marathon is 21.0975 km, about 13.11 miles.

What is 65 mph in km/h?

65 miles per hour is about 104.61 km/h. 55 mph is about 88.51 km/h and 70 mph is about 112.65 km/h.

What is 100 km/h in mph?

100 km/h is about 62.14 mph, a common highway speed limit in countries that use kilometers.

How many miles is 1 kilometer?

One kilometer is about 0.6214 miles, a little over six tenths of a mile.

Is a nautical mile the same as a mile?

No. A nautical mile is 1.852 km, longer than the 1.609 km statute mile used on land. This converter uses statute miles.

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