KM to Miles Converter
Convert kilometers to miles instantly. Enter a distance in kilometers and get miles, plus a table of common race and driving distances.
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Kilometers to Miles Conversion Table
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 km | 0.6214 mi |
| 2 km | 1.2427 mi |
| 3 km | 1.8641 mi |
| 4 km | 2.4855 mi |
| 5 km | 3.1069 mi |
| 10 km | 6.2137 mi |
| 20 km | 12.4274 mi |
| 50 km | 31.0686 mi |
| 100 km | 62.1371 mi |
How to Use
- Type the distance in kilometers into the top field.
- The mile equivalent updates automatically.
- Check the table for common race and travel distances.
- Use the swap link to convert miles back to kilometers.
Common Use Cases
- Converting metric road distances when driving in the US or UK
- Translating running watch and fitness app outputs
- Converting vehicle odometer readings from rental cars abroad
- Comparing cycling route distances listed in kilometers
Helpful Information
How many miles are in a kilometer?
One kilometer equals 0.621371 miles — just under five-eighths of a mile.
KM to miles formula
Miles = kilometers × 0.62137. For example, 5K = 3.11 mi, 10K = 6.21 mi, and a half marathon (21.1 km) = 13.1 mi.
Common distances
1 km ≈ 0.62 mi · 5 km ≈ 3.11 mi · 10 km ≈ 6.21 mi · 21.1 km ≈ 13.1 mi · 42.2 km ≈ 26.2 mi
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Frequently Asked Questions
What is the Km To Miles tool?
Free online km to miles tool. Runs in your browser with no signup.
How do I use the Km To Miles tool?
Add your input above. Adjust the options if the tool provides any. Copy or download the result.
Is the Km To Miles tool free to use?
Km To Miles is a free browser-based tool from Tools2. Nothing is uploaded to a server.
Is 1 km a half mile?
No — a km is 0.62 mi; half a mile is about 0.8 km.
What is 5K in miles?
5 km = 3.11 miles.
What is 10 km in miles?
10 km = 6.21 miles.
How many miles is a half marathon?
A half marathon is 21.1 km = 13.1 miles.