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Speed Converter
Enter a value and choose units — the result appears instantly. This converter supports 9 units, and the table below shows your value in all of them at once.
1 km/h = 0.62137119 mph
1 mph = 1.609344 km/h
Conversion table
1 km/h =
| Unit | Value |
|---|---|
| Meter per second m/s | 0.27777778 |
| Kilometer per hour km/h | 1 |
| Mile per hour mph | 0.62137119 |
| Knot kn | 0.5399568 |
| Foot per second ft/s | 0.91134442 |
| Centimeter per second cm/s | 27.777778 |
| Kilometer per second km/s | 0.00027777778 |
| Mach (sea level) Ma | 0.00081629721 |
| Speed of light c | 9.2656693 × 10⁻¹⁰ |
Quick reference
Kilometer per hour → Mile per hour
| km/h | mph |
|---|---|
| 1 | 0.62137119 |
| 5 | 3.106856 |
| 10 | 6.2137119 |
| 20 | 12.427424 |
| 30 | 18.641136 |
| 50 | 31.06856 |
| 60 | 37.282272 |
| 80 | 49.709695 |
| 100 | 62.137119 |
| 120 | 74.564543 |
| 200 | 124.27424 |
Mile per hour → Kilometer per hour
| mph | km/h |
|---|---|
| 1 | 1.609344 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 20 | 32.18688 |
| 30 | 48.28032 |
| 50 | 80.4672 |
| 60 | 96.56064 |
| 80 | 128.74752 |
| 100 | 160.9344 |
| 120 | 193.12128 |
| 200 | 321.8688 |
Knot → Kilometer per hour
| kn | km/h |
|---|---|
| 1 | 1.852 |
| 5 | 9.26 |
| 10 | 18.52 |
| 20 | 37.04 |
| 30 | 55.56 |
| 50 | 92.6 |
| 60 | 111.12 |
| 80 | 148.16 |
| 100 | 185.2 |
| 120 | 222.24 |
| 200 | 370.4 |