Kilometers to Miles Converter
Convert kilometers (km) to miles (mi) instantly. 1 km = 0.62 miles.
1 km = 0.62 mi
0.6214 miles
Km to Miles Conversion Table
| Kilometers (km) | Miles (mi) | Note |
|---|---|---|
| 1 km | 0.62 mi | |
| 5 km | 3.11 mi | |
| 10 km | 6.21 mi | |
| 21.1 km | 13.11 mi | Half marathon |
| 42.2 km | 26.22 mi | Marathon |
| 50 km | 31.07 mi | |
| 100 km | 62.14 mi | |
| 200 km | 124.27 mi | |
| 500 km | 310.69 mi | |
| 1000 km | 621.37 mi |
How to Convert Kilometers to Miles
To convert kilometers to miles, multiply by 0.621371(or divide by 1.60934).
miles = kilometers × 0.621371
Quick Estimation Tricks
For mental math, you can use these approximations:
- Multiply by 0.6: Quick and reasonably accurate (10 km ≈ 6 miles)
- Multiply by 5, divide by 8: More accurate (10 × 5 ÷ 8 = 6.25 miles)
- Fibonacci sequence: Adjacent numbers approximate km/mi (8 km ≈ 5 mi, 13 km ≈ 8 mi)
Running Distances
- 5K: 5 km = 3.1 miles
- 10K: 10 km = 6.2 miles
- Half Marathon: 21.1 km = 13.1 miles
- Marathon: 42.2 km = 26.2 miles
- Ultra Marathon (50K): 50 km = 31.1 miles
Speed Conversion
When driving, the same conversion applies to speed:
- 50 km/h = 31 mph
- 80 km/h = 50 mph
- 100 km/h = 62 mph
- 120 km/h = 75 mph
Common Uses
- Road trip planning between metric and imperial countries
- Understanding speed limits when traveling
- Running and cycling distance tracking
- Aviation and maritime navigation
- Scientific and geographic measurements
Frequently Asked Questions
How many miles is 1 kilometer?
1 kilometer is equal to 0.621371 miles, or approximately 0.62 miles.
How do I convert km to miles?
To convert kilometers to miles, multiply the distance by 0.621371 (or divide by 1.60934). For example, 10 km × 0.621371 = 6.21 miles.
How many km is a marathon?
A marathon is 42.195 kilometers, which equals 26.2 miles.
What is 100 km in miles?
100 kilometers is equal to 62.14 miles.
What is faster, 100 km/h or 60 mph?
100 km/h equals 62.14 mph, so 100 km/h is slightly faster than 60 mph.