Knots to m/s
One kn equals 0.5144444444 m/s. Type any number and the answer appears as you type — the maths happens in your browser.
The same value in every unit
| Unit | Value |
|---|
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Common values
| knots | m/s |
|---|---|
| 1 kn | 0.51444444 m/s |
| 2 kn | 1.0288889 m/s |
| 3 kn | 1.5433333 m/s |
| 5 kn | 2.5722222 m/s |
| 10 kn | 5.1444444 m/s |
| 15 kn | 7.7166667 m/s |
| 20 kn | 10.288889 m/s |
| 25 kn | 12.861111 m/s |
| 50 kn | 25.722222 m/s |
| 100 kn | 51.444444 m/s |
| 500 kn | 257.22222 m/s |
| 1000 kn | 514.44444 m/s |
How to use
- Enter the number of knots in the field.
- The result in m/s 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: m/s = kn ÷ 1.943844492. Going back the other way, one m/s is 1.943844492 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.
m/s = kn ÷ 1.943844492
Frequently asked questions
How many m/s are in one knots?
One kn is 0.5144444444 m/s.
How do I convert knots to m/s?
Multiply by the factor: m/s = kn ÷ 1.943844492.
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 m/s back to knots?
One m/s is 1.943844492 kn — or open the reverse page linked below.