How to convert knots to kilometers per hour
- Type the value in knots (kn) in the box above.
- The result in kilometers per hour appears instantly, along with the same value in every other unit of speed.
- Press ⇄ to convert the other way.
Formula
km/h = knots × 1.852. So 1 kn = 1.852 km/h, and 10 kn = 18.52 km/h.
Knots to kilometres per hour is exact because the nautical mile is defined as exactly 1852 metres: multiply by 1.852. Sailors, pilots and weather services use knots worldwide, while road speeds use km/h. A force 7 near-gale of 28–33 knots is 52–61 km/h, and a fast ferry at 35 knots moves at about 65 km/h.
kn to km/h conversion chart
| Knots | Kilometers per hour |
|---|---|
| 1 kn | 1.852 km/h |
| 5 kn | 9.26 km/h |
| 10 kn | 18.52 km/h |
| 15 kn | 27.78 km/h |
| 20 kn | 37.04 km/h |
| 25 kn | 46.3 km/h |
| 30 kn | 55.56 km/h |
| 40 kn | 74.08 km/h |
| 50 kn | 92.6 km/h |
| 100 kn | 185.2 km/h |
| 500 kn | 926 km/h |
FAQ
How many km/h is 10 knots?
18.52 km/h exactly.
How do I convert kn to km/h?
Use km/h = knots × 1.852. Or type the value above and the converter does it for you.
How do I convert km/h back to kn?
Multiply by 0.539957, or press the ⇄ button in the converter.