Knots to km/h
One kn equals 1.852 km/h. Type any number and the answer appears as you type — the maths happens in your browser.
Result
The same value in every unit
| Unit | Value |
|---|
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Common values
| knots | km/h |
|---|---|
| 1 kn | 1.852 km/h |
| 2 kn | 3.704 km/h |
| 3 kn | 5.556 km/h |
| 5 kn | 9.26 km/h |
| 10 kn | 18.52 km/h |
| 15 kn | 27.78 km/h |
| 20 kn | 37.04 km/h |
| 25 kn | 46.3 km/h |
| 50 kn | 92.6 km/h |
| 100 kn | 185.2 km/h |
| 500 kn | 926 km/h |
| 1000 kn | 1852 km/h |
How to use
- Enter the number of knots in the field.
- The result in km/h updates on every keystroke.
- Use the table below for the values people look up most often.
Formula and reverse conversion
The formula
To convert by hand: km/h = kn × 1.852. Going back the other way, one km/h is 0.5399568035 kn.
Where the odd number comes from
The factor is not a round number because the imperial units are defined through the metric ones by international agreement: an inch is exactly 25.4 mm and a pound is exactly 0.45359237 kg. Everything else follows from those definitions.
km/h = kn × 1.852
Frequently asked questions
How many km/h are in one knots?
One kn is 1.852 km/h.
How do I convert knots to km/h?
Multiply by the factor: km/h = kn × 1.852.
Is the result exact?
The factors are the exact legal definitions, and up to ten significant digits are kept in the answer. Rounding happens only in the display.
How do I convert km/h back to knots?
One km/h is 0.5399568035 kn — or open the reverse page linked below.