Kilometres per hour to knots – convert km/h to kn
Convert kilometres per hour to knots (km/h to kn) to understand marine, aviation and wind speeds when you are used to metric road speeds. Ideal for sailing, flying, shipping and weather charts.
Open the interactive km/h → kn converter:
Use main converter (km/h → kn) or switch to kn → km/hThe main speed converter also supports mph, m/s and ft/s so you can compare speeds across land, air and sea.
Quick reference: km/h to knots
One knot is 1.852 km/h, so: knots = km/h ÷ 1.852. Some example conversions:
| Kilometres per hour (km/h) | Knots (kn, approx.) |
|---|---|
| 10 km/h | 5.4 kn |
| 20 km/h | 10.8 kn |
| 30 km/h | 16.2 kn |
| 50 km/h | 27.0 kn |
| 80 km/h | 43.2 kn |
| 100 km/h | 54.0 kn |
| 150 km/h | 81.0 kn |
Why convert km/h to knots?
Common reasons to convert km/h to knots include:
- Reading marine forecasts when your instruments show km/h.
- Comparing car speeds with boat or aircraft speeds.
- Interpreting navigation data or GPS logs that report knots.
- Learning how wind speeds in km/h correspond to nautical speeds.
Other speed converters on this site
The speed converter uses precise factors for knots, km/h, mph, m/s and ft/s so you can safely chain conversions without rounding by hand.
Page last updated: 4 December 2025.