Kilometer per hour to Knot Converter
Type a value — the answer appears instantly. 1 km/h = 0.539957 kn.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
0.539957 knots
= 0.621371 mph= 0.277778 m/s
equals 0.539957 knotsFormula: kn = km/h × 0.5399568
Kilometer per hour to Knot formula
kn = km/h × 0.5399568
Convert 5 kilometers per hour to knots
- Start with 5 kilometers per hour.
- Multiply by the conversion factor: 5 × 0.539957 = 2.69978.
- So 5 km/h = 2.69978 kn.
Kilometer per hour to Knot conversion table
| Kilometers per hour (km/h) | Knots (kn) |
|---|---|
| 0.01 km/h | 0.00539957 kn |
| 0.1 km/h | 0.0539957 kn |
| 0.25 km/h | 0.134989 kn |
| 0.5 km/h | 0.269978 kn |
| 1 km/h | 0.539957 kn |
| 2 km/h | 1.07991 kn |
| 3 km/h | 1.61987 kn |
| 4 km/h | 2.15983 kn |
| 5 km/h | 2.69978 kn |
| 6 km/h | 3.23974 kn |
| 7 km/h | 3.7797 kn |
| 8 km/h | 4.31965 kn |
| 9 km/h | 4.85961 kn |
| 10 km/h | 5.39957 kn |
| 15 km/h | 8.09935 kn |
| 20 km/h | 10.7991 kn |
| 25 km/h | 13.4989 kn |
| 30 km/h | 16.1987 kn |
| 40 km/h | 21.5983 kn |
| 50 km/h | 26.9978 kn |
| 75 km/h | 40.4968 kn |
| 100 km/h | 53.9957 kn |
| 250 km/h | 134.989 kn |
| 500 km/h | 269.978 kn |
| 1,000 km/h | 539.957 kn |
| 5,000 km/h | 2,699.78 kn |
| 10,000 km/h | 5,399.57 kn |
Unit definitions
What is a kilometer per hour?
The kilometre per hour is the metric unit for road speed, used on speedometers and speed limits in most countries. It equals 1000 metres travelled in one hour. One kilometre per hour is about 0.621 miles per hour.
What is a knot?
The knot is one nautical mile per hour, the standard speed unit in maritime and aviation navigation. It is defined exactly from the 1852-metre nautical mile. One knot is about 1.852 kilometres per hour or 1.151 miles per hour.
Frequently asked questions
How many knots are in one kilometer per hour?
One kilometer per hour equals 0.539957 knots (1 km/h = 0.539957 kn).
How do I convert kilometers per hour to knots?
Multiply the value in kilometers per hour by 0.539957. For example, 10 km/h × 0.539957 = 5.39957 kn.
Which is bigger — a kilometer per hour or a knot?
A knot is bigger: one knot contains 1.852 kilometers per hour.
Is this kilometer per hour to knot converter free?
Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.
Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.