Convert Knots to Kilometers per hour
One knot equals 1.852 kilometers per hour. Type any value to convert knots to kilometers per hour instantly — with a full reference table below.
Convert Knots to Kilometers per hour
Converted in your browser — nothing you enter is sent anywhere.
How to convert Knots to Kilometers per hour
To convert knots to kilometers per hour, multiply by 1.852. One knot equals 1.852 km/h, and one kilometer per hour equals 0.539957 kn.
- Take the value in knots — for example 7.5 kn.
- Multiply by 1.852 (the number of kilometers per hour in one knot).
- 7.5 × 1.852 = 13.89 km/h.
Quick mental estimate: Divide the number of knots by 0.54 (accurate to better than 0.05%).
Knots to Kilometers per hour conversion table
| Knots | Kilometers per hour |
|---|---|
| 1 kn | 1.852 km/h |
| 5 kn | 9.26 km/h |
| 10 kn | 18.52 km/h |
| 20 kn | 37.04 km/h |
| 25 kn | 46.3 km/h |
| 30 kn | 55.56 km/h |
| 40 kn | 74.08 km/h |
| 50 kn | 92.6 km/h |
| 60 kn | 111.12 km/h |
| 70 kn | 129.64 km/h |
| 80 kn | 148.16 km/h |
| 100 kn | 185.2 km/h |
| 120 kn | 222.24 km/h |
| Kilometers per hour | Knots |
|---|---|
| 1 km/h | 0.539957 kn |
| 5 km/h | 2.699784 kn |
| 10 km/h | 5.399568 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 |
| 60 km/h | 32.39741 kn |
| 70 km/h | 37.79698 kn |
| 80 km/h | 43.19654 kn |
| 100 km/h | 53.99568 kn |
| 120 km/h | 64.79482 kn |
About converting Knots to Kilometers per hour
Knots (kn) and Kilometers per hour (km/h) are both units of speed. The exact factor is 1 kn = 1.852 km/h, so multiply by 1.852 to go from knots to kilometers per hour (or divide to go back).
The conversion runs entirely in your browser. Need the reverse? Use the Kilometers per hour to Knots converter, or the full unit converter for every unit at once.
Real-world speed in knots and kilometers per hour
| Example | Knots | Kilometers per hour |
|---|---|---|
| A walking pace | ≈ 2.721382 kn | ≈ 5.04 km/h |
| Usain Bolt's top speed (2009) | ≈ 24.14255 kn | ≈ 44.712 km/h |
| The UK motorway limit (70 mph) | 60.82834 kn | 112.6541 km/h |
| The German Autobahn advisory speed (130 km/h) | 70.19436 kn | 130 km/h |
| The speed of sound (air, 20 °C) | ≈ 666.7387 kn | ≈ 1,234.8 km/h |
| An airliner at cruise | ≈ 485.9611 kn | ≈ 900 km/h |
“≈” marks typical values; the rest are defined or measured figures.
The units
One nautical mile (1,852 m) per hour, about 0.5144 m/s.
Used for: Aviation, shipping and marine weather.
Kilometres per hour — exactly 1/3.6 m/s.
Used for: Road speeds in most countries.
km/h, mph, ft/s and knots are all defined exactly in metres per second (a knot is one nautical mile, exactly 1,852 m, per hour).