Knots to km/h Converter
1 knot = 1.852 kilometres per hour.
Enter a value
Result
1 knot =
1.852 km/h
1 kn × 1.852 = 1.852 km/h
1 mph = 1.609344 km/h exactly
The working
- 1. Convert 1 kn to metre per seconds: 1 × 0.514444 = 0.514444.
- 2. Convert to km/h: 0.514444 ÷ 0.277778 = 1.852.
1 kn in every unit
Typical speeds
- Walking
- 5 km/h
- Cycling
- 20 km/h
- Motorway limit (UK)
- 70 mph
- Speed of sound
- 1,235 km/h
Conversion table
Knots to Kilometres per hour
| Knots | Kilometres per hour |
|---|---|
| 1 | 1.852 |
| 2 | 3.704 |
| 3 | 5.556 |
| 4 | 7.408 |
| 5 | 9.26 |
| 6 | 11.112 |
| 7 | 12.964 |
| 8 | 14.816 |
| 9 | 16.668 |
| 10 | 18.52 |
| 15 | 27.78 |
| 20 | 37.04 |
| 25 | 46.3 |
| 50 | 92.6 |
| 100 | 185.2 |
Kilometres per hour to Knots
| Kilometres per hour | Knots |
|---|---|
| 1 | 0.53996 |
| 2 | 1.0799 |
| 3 | 1.6199 |
| 4 | 2.1598 |
| 5 | 2.6998 |
| 6 | 3.2397 |
| 7 | 3.7797 |
| 8 | 4.3197 |
| 9 | 4.8596 |
| 10 | 5.3996 |
| 15 | 8.0994 |
| 20 | 10.799 |
| 25 | 13.499 |
| 50 | 26.998 |
| 100 | 53.996 |
Formula and worked example
kilometres per hour = knots × 1.852 (1 knot is exactly 1.852 km/h).
Convert 20 knots to kilometres per hour: 20 × 1.852 = 37.04 km/h.
When you need this
Used to translate marine and aviation speeds and wind forecasts into kilometres per hour.
Questions people ask
How many kilometres per hour are in a knot?
One knot is 1.852 kilometres per hour. 1 knot is exactly 1.852 km/h.
How do I convert knots to kilometres per hour?
Multiply the number of knots by 1.852.
What is 10 kn in km/h?
10 knots is 18.52 kilometres per hour.
How do I convert kilometres per hour back to knots?
Multiply by 0.5399568: one kilometre per hour is 0.5399568 knots.
Related conversions
How we calculate this
We use the standard published formula or definition for this calculation, and we show the working so you can check it. Source: NIST Special Publication 811, Guide for the Use of the International System of Units.
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