Knots to Kilometres per hour — kn to km/h

Enter a value to convert knots (kn) to kilometres per hour (km/h). Works in your browser with no sign-up.

[ kn / km/h — Speed ] instant · works offline
Knots · kn
1.852
Kilometres per hour · km/h
1 kn = 1.852 km/h
Knots → Kilometres per hour
⇄ Reverse: Kilometres per hour → Knots
Formula

1 kn = 1.852 km/h

Multiply the number of knots by 1.852. For example, 20 kn × 1.852 = 37.04 km/h.

Quick Reference — Knots to Kilometres per hour
About Speed Units

Kilometres per hour is the road-speed unit in most countries; the US and UK use miles per hour. Knots (one nautical mile per hour) are used at sea and in aviation. Mach expresses speed as a multiple of the speed of sound, which depends on air temperature; this converter uses 340.3 m/s, the value for the standard atmosphere at sea level (15 °C).

Related Conversions
km/h → kn kn → mph Mach → km/h mph → km/h m/s → km/h All speed units
All Speed Conversions
→Kilometres per hour to miles per hour →Mach to kilometres per hour →Metres per second to miles per hour →Miles per hour to kilometres per hour →Metres per second to kilometres per hour →Knots to miles per hour →Kilometres per hour to knots →Miles per hour to metres per second →Kilometres per hour to Mach
FAQ — Knots to Kilometres per hour

How do I convert knots to kilometres per hour?

Multiply the number of knots by 1.852. For example, 20 kn × 1.852 = 37.04 km/h.

How many kilometres per hour are in one knot?

1 knot = 1.852 km/h (shown to up to 7 significant figures).

What is Mach 1 in km/h?

In the standard atmosphere at sea level (15 °C) the speed of sound is about 340.3 m/s, which is about 1,225 km/h or 761 mph. It is lower in colder air, so at typical airliner cruising altitude it is closer to 1,060 km/h.

Does this converter work offline?

Yes. Once the page has loaded, conversions run entirely in your browser and nothing is sent to a server.