Kilometers to Miles
Convert Kilometers to Miles instantly.
How to Convert Kilometers to Miles
To convert kilometers to miles, multiply by 0.621371. One kilometer equals 0.621371 miles — just over six-tenths of a mile. The kilometer is the standard unit of road distance across most of the world, used on road signs, in GPS navigation, and in international sporting events. Americans and British travelers frequently need this conversion when renting cars, reading road signs, or following race results abroad.
Kilometers to Miles Reference Chart
Common conversions: 1 km = 0.621 miles · 5 km = 3.107 miles · 10 km = 6.214 miles · 21.1 km (half marathon) = 13.1 miles · 42.2 km (marathon) = 26.2 miles · 100 km = 62.1 miles. Quick mental estimate: multiply km by 0.6 for a close approximation.
Frequently Asked Questions
How many miles are in a kilometer?
One kilometer equals 0.621371 miles. A kilometer is shorter than a mile — it takes about 1.609 kilometers to equal one mile.
What is 5 kilometers in miles?
5 kilometers × 0.621371 = 3.107 miles. The 5K race distance — one of the most popular running race distances in the world — is approximately 3.1 miles.
How do I convert km/h to mph?
To convert kilometers per hour to miles per hour, multiply by 0.621371. For example, 100 km/h × 0.621371 = 62.14 mph. The common European highway speed limit of 130 km/h equals approximately 80.8 mph.
Is a kilometer longer or shorter than a mile?
A kilometer is shorter than a mile. One mile equals 1.60934 kilometers, meaning a kilometer is about 62% the length of a mile. If you run a 10K race (10 kilometers), you have run about 6.2 miles.