KM to Miles Converter

Instantly calculate! Your online conversion tool always at hand to easily convert kilometers to miles. Perfect for travel planning, running distances, and international unit conversion. Simply enter your value and get accurate results immediately.

How to Convert KM to Miles

miles = km × 0.621371

1 km = 0.6214 miles
1 mile = 1.60934 km

Example: convert 10 km to miles:
10 km = 10 × 0.621371 miles = 6.2137 miles

KM to Miles

Value:

Convert to:

From kilometers to miles

0.6214

1 km = 0.6214 mi

Quick Conversion Table

KM	Miles
1	0.6214
2	1.2427
3	1.8641
5	3.1069
10	6.2137
15	9.3206

KM	Miles
20	12.4274
21.1	13.111
42.195	26.219
50	31.069
100	62.137

About the Units

Kilometer (km)

A kilometer is a unit of length in the metric system equal to 1,000 meters. The metric system was established in France in 1795. Kilometers are used worldwide as the standard unit for measuring distances between geographic locations, road distances, and in athletics. Most countries outside the US and UK use kilometers for everyday distance measurement.

Mile (mi)

The mile is a unit of length in the imperial and US customary systems. It is defined as exactly 1,609.344 meters (1.609 km). The word "mile" derives from the Latin "mille passus" meaning "a thousand paces." Miles are primarily used in the United States, United Kingdom, and a few other countries for road distances and speed limits.

Frequently Asked Questions

How many miles is 1 km?

1 kilometer equals approximately 0.621371 miles.

How do I convert km to miles?

To convert kilometers to miles, multiply the km value by 0.621371. For example, 10 km = 10 × 0.621371 = 6.2137 miles.

What is the formula for km to miles?

The formula is: miles = km × 0.621371.

How many km is 1 mile?

1 mile equals exactly 1.609344 kilometers.

How far is a marathon in miles?

A marathon is 42.195 kilometers, which equals approximately 26.219 miles (commonly rounded to 26.2 miles).

How far is a 5K in miles?

A 5K race is 5 kilometers, which equals approximately 3.107 miles.

Is 1 km longer than 1 mile?

No, 1 mile is longer than 1 kilometer. One mile equals about 1.609 km, so a mile is roughly 60% longer than a kilometer.

How can I quickly estimate km to miles?

Multiply the km value by 0.6 for a quick estimate. Another trick: multiply by 5 and divide by 8. For example, 10 km × 5 ÷ 8 = 6.25 miles (actual: 6.214).

How many miles is 100 km?

100 kilometers equals approximately 62.137 miles.

What is 100 km/h in mph?

100 kilometers per hour equals approximately 62.14 miles per hour (100 × 0.621371).