km/h to Knots (Kilometers per Hour to Knots) Converter
1 kilometer per hour equals 0.5399568 knots — multiply km/h by 0.5399568 to convert. A knot is one nautical mile (1.852 km) per hour, so each km/h is the reciprocal of 1.852, roughly 0.54 of a knot.
The formula
Multiply the km/h value by 0.5399568 to get knots:
kn = km/h × 0.5399568
For example, 100 km/h × 0.5399568 = 53.99568 kn. To reverse, divide knots by 0.5399568 (or multiply by 1.852).
Conversion table
| Kilometers per hour (km/h) | Knots (kn) |
|---|---|
| 1 | 0.5399568 |
| 2 | 1.0799136 |
| 5 | 2.699784 |
| 10 | 5.399568 |
| 25 | 13.49892 |
| 50 | 26.99784 |
| 100 | 53.99568 |
| 500 | 269.9784 |
| 1000 | 539.9568 |
How to convert online
- Type the number of kilometers per hour in the first box.
- Read the knot result instantly in the second box.
- Enter a knot value to convert the other way — it works both directions.
Use the Kilometer per Hour to Knot Converter — free and instant in your browser.
Where this conversion is used
Knots are the standard speed unit in aviation and marine navigation, where distances are measured in nautical miles. Pilots, sailors, and weather forecasters routinely translate km/h wind and ground speeds into knots to match charts, instruments, and international reporting formats such as METARs.
FAQ
How many knots are in a km/h?
One km/h equals 0.5399568 knots. Multiply the km/h figure by 0.5399568 — for example, 10 km/h = 5.399568 kn.
What is the formula to convert km/h to knots?
Use kn = km/h × 0.5399568. The tool applies this exact factor automatically so you never round by hand.
How do I convert knots back to km/h?
Divide by 0.5399568, or multiply by 1.852. For instance, 53.99568 kn = 100 km/h.
Is the conversion exact?
The nautical mile is exactly 1.852 km, so the factor is exact; 0.5399568 is that reciprocal rounded to seven places.
Related converters
- Knot to Kilometer per Hour Converter
- Kilometer per Hour to Meter per Second Converter
- Kilometer per Hour to Mile per Hour Converter
- Kilometer per Hour to Foot per Second Converter
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