Length Conversion

Kilometers to Miles Converter

Instantly convert Kilometers (km) to Miles (mi). Essential for driving distances, running events, flight distances, and fuel economy calculations.

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Quick Reference

How to Convert Kilometers to Miles

To convert Kilometers to Miles, use this formula:

miles = km × 0.621371

Example: Converting 100 km to Miles gives you 62.137 miles. Just enter your own value in the converter above for an instant result.

Kilometers to Miles Conversion Table

Common Kilometers to Miles values at a glance — use this as a quick lookup reference:

Kilometers (km)Miles (mi)
1 km0.621371 mi
2 km1.2427 mi
5 km3.1069 mi
10 km6.2137 mi
15 km9.3206 mi
20 km12.4274 mi
25 km15.5343 mi
42.195 km26.2187 mi
50 km31.0685 mi
100 km62.1371 mi
500 km310.69 mi

When to Use Kilometers to Miles Conversion

Essential for driving distances, running events, flight distances, and fuel economy calculations. Here are the most common scenarios where you will need this conversion:

International driving — reading road signs abroad Running — 5K, 10K, half marathon, marathon conversions Flight distances — international travel planning Fitness apps — converting step or run data

About Kilometers and Miles

One kilometer equals approximately 0.621371 miles. Kilometers are used for road distances in most countries outside the US and UK, while miles remain the standard in those two. Converting between them is critical for travelers, international athletes (a marathon is 42.195 km = 26.219 miles), and anyone interpreting GPS data or travel plans. The conversion also matters for car fuel economy — European cars show liters per 100 km while US cars show miles per gallon.

Related Length Conversions

Miles to Kilometers Meters to Feet Kilometers per Hour to Miles per Hour Miles per Hour to Kilometers per Hour Meters to Inches