Kilometers to Miles Converter (km to mi)

Convert kilometers to miles instantly. You can also swap units.

Conversion Formula

Kilometers to miles:

miles = kilometers × 0.621371

Miles to kilometers:

kilometers = miles × 1.609344

What Is a Kilometer?

A kilometer (km) is a metric unit of length equal to 1,000 meters. It is widely used around the world to measure distances between cities, road lengths, and travel distances.

What Is a Mile?

A mile (mi) is an imperial unit of length equal to 1,609.344 meters. Miles are mainly used in the United States and the United Kingdom for road distances, speed limits, and running measurements.

How to Convert Kilometers to Miles

1. Take the distance in kilometers.
2. Multiply it by 0.621371.
3. The result is the distance in miles.

Quick estimate: divide kilometers by 1.6.

Kilometers to Miles Key Values Table

Commonly searched values (1–25 km).

Examples

5 km = 3.107 miles

10 km = 6.214 miles

42.195 km = 26.219 miles (marathon distance)

Frequently Asked Questions

How many miles is 1 kilometer?

1 kilometer equals approximately 0.621 miles.

How many kilometers is 1 mile?

1 mile (mi) equals exactly 1.609344 kilometers.

Why do some countries use miles instead of kilometers?

The mile is part of the imperial system, historically used in the US and UK.

Real-Life Examples

• Road Trips: A 160-kilometer road trip is approximately 99.4 miles, helping drivers understand distances when traveling between countries that use different measurement systems.
• Marathon & Running Events: A 10-kilometer race equals about 6.21 miles, useful for runners comparing international race formats.
• Flight Distances: A short flight covering 800 kilometers is roughly 497 miles, helping travelers estimate travel distance more intuitively.
• Vehicle Speed Limits: A speed limit of 100 km/h translates to about 62 mph, which is important when driving abroad.
• Cycling Routes: A cycling trail marked as 40 kilometers is about 24.85 miles, helping cyclists plan endurance rides.
• GPS & Navigation Apps: A navigation app showing 12 kilometers remaining means approximately 7.46 miles to your destination.
• Hiking Trails: A mountain hike of 25 kilometers equals about 15.53 miles, useful for hikers estimating time and effort.
• Sports Training: Athletes training for long-distance events may convert 50 kilometers into about 31.07 miles for pacing strategies.

Kilometers to Miles Visual Guide

Kilometers and miles are both used to measure long distances. A kilometer is shorter than a mile, which means it takes more kilometers to cover the same distance.

1 kilometer ≈ 0.62 miles
5 kilometers ≈ 3.11 miles
10 kilometers ≈ 6.21 miles

Visual Distance Comparison

Easy to Imagine

• 1 kilometer is about a 12–15 minute walk.
• 1 mile is about a 20 minute walk.
• 4 kilometers is roughly equal to 2.5 miles.

Download Full 1–300 Kilometers to Miles Table (CSV)