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Convert kilometers per hour to knots
Instant, accurate km/h → kn conversion with a live converter, table and formula.
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1 kilometers per hour = 0.539957 knots
1 knot = 1.852 kilometers per hour
kilometers per hour to knots table
| kilometers per hour (km/h) | knots (kn) |
|---|---|
| 0.5 | 0.269979 |
| 1 | 0.539957 |
| 2 | 1.07991 |
| 5 | 2.69979 |
| 10 | 5.39957 |
| 20 | 10.7991 |
| 50 | 26.9979 |
| 100 | 53.9957 |
| 500 | 269.979 |
| 1000 | 539.957 |
Formula
knots = kilometers per hour × 0.539957.
Example
10 kilometers per hour = 5.39957 knots.
What is a kilometers per hour?
Kilometers per hour (km/h) is the metric speed unit for vehicles.
What is a knot?
A knot (kn) is one nautical mile per hour (1.852 km/h), used at sea and in aviation.
Real-world reference points
Walking is ~5 km/h (3 mph); city driving ~50 km/h (31 mph); a jet cruises near 900 km/h (560 mph).
| Reference | kilometers per hour | knots |
|---|---|---|
| Brisk walk | 5.4 km/h | 2.92 kn |
| Sprinting world record (avg) | 37.58 km/h | 20.29 kn |
| City speed limit (50 km/h) | 50 km/h | 27 kn |
| Highway cruising (100 km/h) | 100 km/h | 54 kn |
| Commercial jet cruise | 900 km/h | 486 kn |
Mistakes to avoid with speed conversions
- Dividing instead of multiplying by 3.6 when moving between m/s and km/h.
- Assuming knots equal mph — a knot is ~15% faster (nautical miles per hour).
- Comparing GPS speed (ground speed) with a car's speedometer, which reads slightly high by design.
Frequently asked questions
How many knots in a kilometers per hour?+
1 kilometers per hour = 0.539957 knots.
How do I convert kilometers per hour to knots?+
Enter the value in the kilometers per hour box above and the knots value appears instantly. You can also type in the knots box to convert the other way.
Is this km/h to kn converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.