km to Miles Converter
1 kilometer = 0.621371 miles — convert any distance instantly
Kilometers to Miles Reference Table
Quick tip: To estimate miles, multiply km by 0.6 or divide by 1.6. For example: 10 km ÷ 1.6 ≈ 6.25 miles (actual: 6.214).
km → miles
| km | Miles |
|---|---|
| 1 km | 0.621 mi |
| 2 km | 1.243 mi |
| 3 km | 1.864 mi |
| 5 km | 3.107 mi |
| 8 km | 4.971 mi |
| 10 km | 6.214 mi |
| 15 km | 9.321 mi |
| 20 km | 12.427 mi |
| 25 km | 15.534 mi |
| 30 km | 18.641 mi |
| 40 km | 24.855 mi |
| 50 km | 31.069 mi |
| 60 km | 37.282 mi |
| 80 km | 49.710 mi |
| 100 km | 62.137 mi |
| 200 km | 124.274 mi |
| 500 km | 310.686 mi |
| 1000 km | 621.371 mi |
miles → km
| Miles | km |
|---|---|
| 1 mi | 1.609 km |
| 2 mi | 3.219 km |
| 3 mi | 4.828 km |
| 5 mi | 8.047 km |
| 10 mi | 16.093 km |
| 15 mi | 24.140 km |
| 20 mi | 32.187 km |
| 25 mi | 40.234 km |
| 30 mi | 48.280 km |
| 40 mi | 64.374 km |
| 50 mi | 80.467 km |
| 60 mi | 96.561 km |
| 70 mi | 112.654 km |
| 80 mi | 128.748 km |
| 100 mi | 160.934 km |
| 200 mi | 321.869 km |
| 500 mi | 804.672 km |
| 1000 mi | 1609.344 km |
Race Distance Reference
Standard race distances in both km and miles — click any row to convert:
| Race | km | Miles |
|---|---|---|
| 1 Mile Run | 1.609 km | 1.000 mi |
| 5K | 5.000 km | 3.107 mi |
| 8K | 8.047 km | 5.000 mi |
| 10K | 10.000 km | 6.214 mi |
| 15K | 15.000 km | 9.321 mi |
| 10 Miles | 16.093 km | 10.000 mi |
| Half Marathon | 21.098 km | 13.109 mi |
| 20 Miles | 32.187 km | 20.000 mi |
| Marathon | 42.195 km | 26.219 mi |
| 50K Ultra | 50.000 km | 31.069 mi |
| 100K Ultra | 100.000 km | 62.137 mi |
Speed Conversion: km/h to mph
Convert common speeds from km/h to miles per hour:
Formula: mph = km/h × 0.621371. Example: 100 km/h × 0.621371 = 62.1 mph.
| km/h | mph | Context |
|---|---|---|
| 30 km/h | 18.6 mph | City / school zone |
| 50 km/h | 31.1 mph | Urban street |
| 60 km/h | 37.3 mph | Suburban road |
| 80 km/h | 49.7 mph | Country road |
| 100 km/h | 62.1 mph | Highway / motorway |
| 110 km/h | 68.4 mph | Highway (AU/DE) |
| 120 km/h | 74.6 mph | Autobahn / highway |
| 130 km/h | 80.8 mph | EU motorway limit |
| 160 km/h | 99.4 mph | Racing / track limit |
| 300 km/h | 186.4 mph | High-speed rail |
Frequently Asked Questions
How many miles in 1 km?
1 kilometer = 0.621371 miles. Conversely, 1 mile = 1.60934 km.
What is 100 km in miles?
100 km = 62.14 miles. Multiply 100 × 0.621371 = 62.1371 miles.
What is 1 mile in km?
1 mile = 1.60934 km. To convert miles to km, multiply by 1.60934.
How many km is a marathon?
A marathon is 42.195 km (26.219 miles). A half marathon is 21.0975 km (13.109 miles).
How do I convert km to miles quickly in my head?
Multiply km by 0.6 (or divide by 1.6) for a quick estimate. Example: 10 km × 0.6 = 6 miles (actual: 6.21). About 96% accurate.
What is 5 miles in km?
5 miles = 8.047 km. Multiply 5 × 1.60934 = 8.047 km.