How many knots are in 1 kilometer per hour?

1 kilometer per hour equals 0.539957 kn.

How do I convert knots back to kilometers per hour?

Use the reverse converter: 1 knot equals 1.852 km/h.

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert kilometers per hour to knots, multiply the value by 0.539956803.

kn = km/h × 0.539956803

40 km/h × 0.539956803 = 21.6 kn

Kilometer Per Hour (km/h): Used for road speed limits and vehicle speeds in most countries.
Knot (kn): One nautical mile per hour, used in sailing, aviation and weather reports.

How do I convert kilometers per hour to knots?: To convert kilometers per hour to knots, multiply the value by 0.539956803.
How many knots are in 1 kilometer per hour?: 1 kilometer per hour equals 0.539957 kn.
How many knots are in 10 kilometers per hour?: 10 km/h equals 5.39957 kn.
How do I convert knots back to kilometers per hour?: Use the reverse converter: 1 knot equals 1.852 km/h.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.