Knots to KM/H Converter
Useful for boat and aircraft speeds and marine wind forecasts.
1 kn = 1.852 km/h
kilometers per hour
1 kn = 1.852 km/h
How to convert knots to kilometers per hour
Multiply the number of knots by 1.852.
Formula
km/h = kn × 1.852
Examples
- 10 kn × 1.852 = 18.52 km/h
- 34 kn × 1.852 = 62.968 km/h
- 450 kn × 1.852 = 833.4 km/h
Knots to kilometers per hour conversion table
| Knots (kn) | Kilometers per hour (km/h) |
|---|---|
| 1 | 1.852 |
| 5 | 9.26 |
| 10 | 18.52 |
| 15 | 27.78 |
| 20 | 37.04 |
| 25 | 46.3 |
| 30 | 55.56 |
| 34 | 62.968 |
| 40 | 74.08 |
| 50 | 92.6 |
| 64 | 118.528 |
| 100 | 185.2 |
| 150 | 277.8 |
| 250 | 463 |
| 450 | 833.4 |
| 500 | 926 |
Values rounded to 4 decimal places or 4 significant digits.
About knots
A knot is one nautical mile (1,852 m) per hour, exactly 1.852 km/h. Ships, aircraft and marine weather forecasts use knots.
About kilometers per hour
Kilometers per hour is the unit on speed-limit signs and speedometers in most of the world. 1 km/h equals 1/3.6 m/s, or about 0.278 m/s.
Frequently asked questions
How many kilometers per hour are in one knot?
One knot equals 1.852 kilometers per hour.
How do I convert knots to kilometers per hour?
Multiply the number of knots by 1.852. For example: 34 kn × 1.852 = 62.968 km/h.
How many knots are in one kilometer per hour?
One kilometer per hour equals 0.54 knots.
Is the kn to km/h conversion exact?
Yes. The factor follows directly from the official definitions of both units, so the only rounding is in how many decimals are displayed.