How to convert kilometers per hour to knots
Kilometers per Hour and Knots both measure speed, so converting is a single multiplication. One km/h equals 0.539958 kn, so you multiply your kilometers per hour value by 0.539958.
Formula: knots = kilometers per hour × 0.539958. For example, 10 km/h = 5.399577 kn.
Kilometers per Hour to Knots conversion table
| Kilometers per Hour (km/h) | Knots (kn) |
|---|---|
| 1 | 0.539958 |
| 2 | 1.079915 |
| 5 | 2.699789 |
| 10 | 5.399577 |
| 25 | 13.498943 |
| 50 | 26.997885 |
| 100 | 53.99577 |
| 1,000 | 539.957702 |
Kilometers per Hour and Knots explained
Kilometers per Hour (km/h): The metric speed unit for vehicles in most of the world.
Knots (kn): One nautical mile per hour, used in aviation and shipping.
When you'd convert kilometers per hour to knots
You'll convert kilometers per hour to knots whenever a measurement is given in one unit but you need it in the other — comparing kilometers per hour and knots figures across regions, following a recipe or spec, or double-checking a number. Because 1 km/h is exactly 0.539958 kn, the result is precise every time.
Frequently asked questions
How many knots are in a kilometers per hour?
One km/h equals 0.539958 kn. Multiply your kilometers per hour figure by 0.539958 to get knots.
What is the formula to convert kilometers per hour to knots?
knots = kilometers per hour × 0.539958. The factor 0.539958 is exact.
What is 2 kilometers per hour in knots?
2 km/h = 1.079915 kn. You can enter any value in the converter above to get an instant result.
Is this Kilometers per Hour to Knots converter accurate?
Yes. It uses the standard conversion factor (1 km/h = 0.539958 kn) defined by BIPM — SI Brochure (derived units), so results are exact to several decimal places.