1 km/h equals 0.539957 kn. To convert km/h to kn, multiply the value by 0.539957; divide by 0.539957 to convert back. Enter any number above and the result appears instantly — free and entirely in your browser.
How do you convert km/h to kn?
The conversion formula is kn = km/h × 0.539957. The conversion factor is fixed by definition, so the result is always exact.
km/h to kn conversion table
| km/h | kn |
|---|---|
| 10 km/h | 5.39957 kn |
| 30 km/h | 16.1987 kn |
| 50 km/h | 26.9978 kn |
| 80 km/h | 43.1965 kn |
| 100 km/h | 53.9957 kn |
| 130 km/h | 70.1944 kn |
What is km/h (km/h)?
Kilometres per hour (km/h) is the everyday speed unit for road traffic in most of the world: speedometers, speed limits and weather reports all use it.
What is kn (kn)?
The knot (kn) is one nautical mile per hour — exactly 1.852 km/h. It is the standard speed unit in shipping and aviation, and for wind in marine forecasts.
Why convert km/h to kn?
Road speeds are posted in km/h in most countries but in mph in the US and UK; shipping and aviation use knots, physics and wind data use metres per second. Converting between them is routine for travel, sailing and sport.
One knot is exactly 1.852 km/h — one international nautical mile (1,852 m, standardised in 1929) per hour. And 100 km/h equals 62.137 mph or 27.778 m/s.
How to convert km/h to kn
- Enter the value in km/h into the left field of the converter.
- Read the result in kn instantly in the right field — it updates automatically.
- Use the swap button to reverse the direction (kn to km/h).
The converter runs entirely in your browser: no uploads, no queue, no limits. You can even use it offline.