Convert Kilometers per hour to knots

1 kilometer per hour = 0.539957 knots · kn = km/h ÷ 1.852

km/h
Knots
0.539957kn

1 kilometer per hour = 0.539957 knots

When you need this conversion

Aviation and sailing use knots as standard because a knot is one nautical mile per hour, which maps directly onto latitude. Pilots, boaters, and anyone reading a marine or aviation weather forecast needs this to relate it to road speeds.

Kilometers per hour to knots conversion table

Conversion table from kilometers per hour to knots
Kilometers per hour (km/h)Knots (kn)
1 km/h0.539957 kn
2 km/h1.0799 kn
3 km/h1.6199 kn
5 km/h2.6998 kn
10 km/h5.3996 kn
15 km/h8.0994 kn
20 km/h10.7991 kn
25 km/h13.4989 kn
50 km/h26.9978 kn
75 km/h40.4968 kn
100 km/h53.9957 kn
250 km/h134.99 kn
500 km/h269.98 kn
1,000 km/h539.96 kn

The formula

kn = km/h ÷ 1.852

Because both units measure speed, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.

Convert the other way

Knots to kilometers per hour →

Related speed conversions

All speed conversions →

Frequently asked questions

How many knots are in a kilometer per hour?
There are 0.539957 knots in 1 kilometer per hour. The formula is kn = km/h ÷ 1.852.
How do you convert kilometers per hour to knots?
Use the formula kn = km/h ÷ 1.852. For example, 10 kilometers per hour equals 5.3996 knots.
Is the kilometers per hour to knots conversion exact?
Yes. Kilometers per hour and knots are both units of speed, related by an exact defined factor. Displayed results are rounded for readability.
What is km/h short for?
km/h is the standard symbol for kilometer per hour (also written as kmh, kph). kn is the symbol for knot.