Kilometer per hour to Mile per hour (km/h → mph)
Convert kilometer per hour to mile per hour instantly. The conversion factor below is exact by international definition.
Realtime·speed·metric
Exact
km/h
× 0.6214
mph
0.621371
Precision [auto]
6
📐km/h to mph formulaExact
mph = km/h × 0.621371192237
Inverse: km/h = mph × 1.609344
Worked example: 1 km/h = 0.621371192237 mph
ℹ️About these units
Kilometer per hour (km/h)
Road speed limits in most of the world.
Mile per hour (mph)
Road speed limits in US, UK.
📊Reference table: km/h → mph
| Kilometer per hour (km/h) | Mile per hour (mph) |
|---|---|
| 1 | 0.621371 |
| 2 | 1.2427 |
| 5 | 3.1069 |
| 10 | 6.2137 |
| 15 | 9.3206 |
| 20 | 12.4274 |
| 25 | 15.5343 |
| 50 | 31.0686 |
| 100 | 62.1371 |
| 250 | 155.3428 |
| 500 | 310.6856 |
| 750 | 466.0284 |
| 1,000 | 621.3712 |
Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.
🔁Reverse & related
🔌API & widget
GET https://convertnavi.com/api/v1/convert?value=10&from=kilometer-per-hour&to=mile-per-hourEmbed this converter
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