Speed
Kilometer/hour vs Mile/hour vs Knot
Quick reference table for unit conversions with key differences.
Reference Table
| Kilometer/hourkm/h | Mile/hourmph | Knotkn |
|---|---|---|
| 1 | 0.6213712 | 0.5399573 |
| 5 | 3.106856 | 2.699786 |
| 10 | 6.213712 | 5.399573 |
| 25 | 15.53428 | 13.49893 |
| 50 | 31.06856 | 26.99786 |
| 100 | 62.13712 | 53.99573 |
| 200 | 124.2742 | 107.9915 |
| 500 | 310.6856 | 269.9786 |
| 1000 | 621.3712 | 539.9573 |
About These Units
km/h
Kilometer/hour
Symbol: km/h
Kilometers per hour is the standard speed unit for road traffic in most countries worldwide.
Used in: Worldwide (except US, UK)
mph
Mile/hour
Symbol: mph
Miles per hour is used for road speed limits and vehicle speeds in the US and UK.
Used in: United States, United Kingdom
kn
Knot
Symbol: kn
The knot equals one nautical mile per hour. Used universally in maritime and aviation navigation.
Used in: Worldwide (maritime, aviation)
Key Differences
- 1 km/h is equal to 0.6213712 mph.
- 1 km/h is equal to 0.5399573 kn.
- 1 mph is equal to 0.868977 kn.