KMH to Knots Converter
Convert kilometers per hour to knots instantly. One kilometer per hour equals exactly 0.5399568 knots. Type in either box to convert both ways, then use the chart, worked examples and everyday sizes below.
How to convert kilometers per hour to knots
Worked example: convert 12 kilometers per hour to knots. Using knots ← kilometers per hour × 0.5399568035, we get 12 × 0.5399568035 = 6.4794816 kn. To check the result, convert back: 6.4794816 kn ÷ 0.5399568035 = 12 km/h.
Kilometers per hour to knots chart
| Kilometers per hour (km/h) | Knots (kn) |
|---|---|
| 1 km/h | 0.5399568 kn |
| 2 km/h | 1.079914 kn |
| 3 km/h | 1.61987 kn |
| 4 km/h | 2.159827 kn |
| 5 km/h | 2.699784 kn |
| 6 km/h | 3.239741 kn |
| 8 km/h | 4.319654 kn |
| 10 km/h | 5.399568 kn |
| 12 km/h | 6.479482 kn |
| 15 km/h | 8.099352 kn |
| 20 km/h | 10.79914 kn |
| 25 km/h | 13.49892 kn |
| 30 km/h | 16.1987 kn |
| 40 km/h | 21.59827 kn |
| 50 km/h | 26.99784 kn |
| 75 km/h | 40.49676 kn |
| 100 km/h | 53.99568 kn |
| 150 km/h | 80.99352 kn |
| 200 km/h | 107.9914 kn |
| 250 km/h | 134.9892 kn |
| 500 km/h | 269.9784 kn |
| 1,000 km/h | 539.9568 kn |
Knots to kilometers per hour (reverse)
| Knots (kn) | Kilometers per hour (km/h) |
|---|---|
| 1 kn | 1.852 km/h |
| 2 kn | 3.704 km/h |
| 5 kn | 9.26 km/h |
| 10 kn | 18.52 km/h |
| 20 kn | 37.04 km/h |
| 50 kn | 92.6 km/h |
| 100 kn | 185.2 km/h |
| 250 kn | 463 km/h |
| 500 kn | 926 km/h |
| 1,000 kn | 1,852 km/h |
About the kilometer per hour and the knot
Kilometers per hour is the speed unit on road signs in most countries. A speed of 100 km/h is about 62 mph and 27.8 m/s.
A knot is one nautical mile per hour. Ships, aircraft and weather services use knots for speed and wind speed.
One knot equals 1.852 kilometers per hour, which makes the knot the faster unit of the two.
Everyday sizes in kilometers per hour and knots
| Everyday example (approximate) | In kilometers per hour | In knots |
|---|---|---|
| A slow walk | 5.04 km/h | 2.7214 kn |
| A jogger | 10.8 km/h | 5.8315 kn |
| A city cyclist | 19.8 km/h | 10.691 kn |
| Usain Bolt's peak sprint speed | 44.64 km/h | 24.104 kn |
| A car on a city road | 50.004 km/h | 27 kn |
| A car on a highway | 100.01 km/h | 54 kn |
Kilometers per hour to knots FAQ
How many knots are in one kilometer per hour?
One kilometer per hour equals exactly 0.5399568035 knots. In the other direction, one knot equals 1.852 kilometers per hour.
How do I convert kilometers per hour to knots without a calculator?
convert 12 kilometers per hour to knots. Using knots ← kilometers per hour × 0.5399568035, we get 12 × 0.5399568035 = 6.4794816 kn. To check the result, convert back: 6.4794816 kn ÷ 0.5399568035 = 12 km/h. For a quick estimate, round the factor to 0.54. Then 12 km/h is about 6.48 kn, compared with the exact 6.47948 kn (an error of 0.008%). That is close enough for planning, but use the calculator above when the number matters.
What is a slow walk in knots?
A slow walk is about 5.04 kilometers per hour, which is 2.7214 knots. Treat that as an approximate everyday figure rather than an official measurement.
Are the kilometers per hour and knots the same in every country?
One kilometer per hour is exactly 5/18 m/s. One knot is exactly 1.852 km/h (1 nautical mile per hour).