Convert Knots to Kilometers per Hour
Knots to Kilometers per Hour conversion table
| Knots (kn) | Kilometers per Hour (km/h) |
|---|---|
| 1 kn | 1.851997 km/h |
| 2 kn | 3.703994 km/h |
| 5 kn | 9.259985 km/h |
| 10 kn | 18.519969 km/h |
| 25 kn | 46.299923 km/h |
| 50 kn | 92.599846 km/h |
| 100 kn | 185.199692 km/h |
| 200 kn | 370.399384 km/h |
| 500 kn | 925.998459 km/h |
| 1000 kn | 1851.996918 km/h |
How to convert knots to kilometers per hour
Knots measure speed in nautical miles per hour, standard in aviation and maritime navigation. One knot equals 1.852 km/h, derived from the nautical mile definition (1 nmi = 1.852 km). Knots are NOT the same as mph.
Multiply knots by 1.852 to get km/h. Formula: km/h = kn × 1.852. 10 knots = 18.52 km/h. 20 knots (moderate wind) = 37.04 km/h. Cruise ship speed of 22 knots = 40.74 km/h.
Pilots, sailors, and weather reports (wind in knots) need this for ground communication in km/h. Hurricane categories reference sustained wind in knots.
Also useful: 1 knot = 1.15078 mph. 100 knots = 185.2 km/h = 115 mph.
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Frequently asked questions
1 knot = 1.852 km/h exactly.
Sailors measured ship speed by counting knots in a rope paid out over a timed interval. The term stuck for nautical miles per hour.
1 knot = 1.15078 mph. Knots are based on nautical miles, which are longer than statute miles.