Convert Kilometres per hour to Knots
1 kilometre per hour is 0.539957 kn. One kilometre per hour is exactly 0.539956803456 knots.
One kilometre per hour is 0.5399568 knots. To convert kilometres per hour to knots, multiply by 0.5399568; to go the other way, divide by 0.5399568 or multiply by 1.852. The factor is exact rather than rounded: it follows from NIST Special Publication 811. Exactly one kilometre divided by 3,600 seconds.
Factor checked against the defining standard · How we check
Knots
0.539957 kn
- Kilometres per hour × 0.5399568
value * 0.5399568034560.54 kn
1 kilometre per hour in every speed unit
| Unit | Value | Exact factor |
|---|---|---|
| metres per second | 0.2777777778 m/s | × 0.277777777778 |
| kilometres per hour (as entered) | 1 km/h | — |
| miles per hour | 0.6213711922 mph | × 0.621371192237 |
| knots | 0.5399568035 kn | × 0.539956803456 |
| feet per second | 0.9113444153 ft/s | × 0.911344415281 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert kilometres per hour to knots?
- 1.Take the measurement in kilometres per hour.
- 2.Multiply by 0.5399568 — that is how many knots fit in one kilometre per hour.
- 3.To go back the other way, divide by 0.5399568, or multiply by 1.852.
Kilometres per hour to knots conversion table
| Kilometres per hour | Knots |
|---|---|
| 1 km/h | 0.539957 kn |
| 2 km/h | 1.079914 kn |
| 3 km/h | 1.61987 kn |
| 4 km/h | 2.159827 kn |
| 5 km/h | 2.699784 kn |
| 6 km/h | 3.239741 kn |
| 7 km/h | 3.779698 kn |
| 8 km/h | 4.319654 kn |
| 9 km/h | 4.859611 kn |
| 10 km/h | 5.399568 kn |
| 12 km/h | 6.479482 kn |
| 15 km/h | 8.099352 kn |
| 20 km/h | 10.799136 kn |
| 25 km/h | 13.49892 kn |
| 50 km/h | 26.99784 kn |
| 100 km/h | 53.99568 kn |
What are kilometres per hour and knots?
- Kilometre per hour (km/h)
- Exactly one kilometre divided by 3,600 seconds. The road speed unit almost everywhere outside the United States and the United Kingdom.
- Knot (kn)
- One nautical mile per hour — exactly 1,852 metres per hour. Used at sea and in the air because a nautical mile is one minute of latitude, which makes navigation arithmetic simple.
Source: NIST Special Publication 811 — conversion factors for speed
Questions people actually ask
- How many knots are in a kilometre per hour?
- 0.5399568. One nautical mile per hour — exactly 1,852 metres per hour. Used at sea and in the air because a nautical mile is one minute of latitude, which makes navigation arithmetic simple.
- How do I convert knots back to kilometres per hour?
- Divide by 0.5399568, or multiply by 1.852 — they are the same operation.
Other speed conversions
Knots to kilometres per hour — the same conversion the other way.