Formula.km/h = knots × 1.852.
Relationship.1 kn = 1.852 km/h.
Worked example. 20 kn = 37.04 km/h.
Knots to km/h Converter.
1 kn = 1.852 km/h, so 20 kn = 37.04 km/h. Type any value below to convert knots to km/h instantly.
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kn
Copied ✓ km/h
Copied ✓ Reference Table
| km/h | mph | m/s | ft/s | kn |
|---|---|---|---|---|
| 0.03704 | 0.023015589 | 0.0102888889 | 0.0337561971 | 0.02 |
| 0.3704 | 0.2301558896 | 0.1028888889 | 0.3375619714 | 0.2 |
| 3.704 | 2.301559 | 1.028889 | 3.37562 | 2 |
| 37.04 | 23.015589 | 10.288889 | 33.756197 | 20 |
| 370.4 | 230.15589 | 102.888889 | 337.561971 | 200 |
| 3704 | 2301.5589 | 1028.8889 | 3375.6197 | 2000 |
| 37040 | 23015.589 | 10288.8889 | 33756.1971 | 20000 |
How to convert knots to km/h
knots to km/h conversion table
| kn | km/h |
|---|---|
| 1 | 1.852 |
| 2 | 3.704 |
| 3 | 5.556 |
| 5 | 9.26 |
| 8 | 14.816 |
| 10 | 18.52 |
| 12 | 22.224 |
| 15 | 27.78 |
| 18 | 33.336 |
| 20 | 37.04 |
| 22 | 40.744 |
| 25 | 46.3 |
| 28 | 51.856 |
| 30 | 55.56 |
| 34 | 62.968 |
| 35 | 64.82 |
| 40 | 74.08 |
| 45 | 83.34 |
| 48 | 88.896 |
| 50 | 92.6 |
| 60 | 111.12 |
| 64 | 118.528 |
| 100 | 185.2 |
| 150 | 277.8 |
| 250 | 463 |
Frequently Asked Questions
How do I convert knots to km/h?
Multiply by 1.852. A knot is one nautical mile per hour, and a nautical mile is exactly 1,852 m, so 20 knots = 37.04 km/h.
Why do ships and aircraft use knots?
A nautical mile is about one minute of latitude, so a distance measured on a chart converts straight into nautical miles, and a speed in knots into time on the route. Aviation and shipping kept the unit for that reason.
How fast is hurricane-force wind in km/h?
Hurricane force, force 12 on the Beaufort scale, starts at 64 knots, which is 118.5 km/h. A gale (force 8) starts at 34 knots, about 63 km/h.
Is a knot the same as a mile per hour?
No. A knot is 1.151 mph, because a nautical mile (1,852 m) is longer than a statute mile (1,609.344 m).