Miles per hour to Knots Converter
Convert miles per hour (mph) to knots (kn) instantly. Speed conversions come up with expressway limits in km/h, foreign car specs in mph and wind speeds reported in knots by the Meteorological Service.
Result
- Knots
- 0.868977 kn
How to use the miles per hour to knots converter
- Enter the miles per hour (mph).
- The results update as you type, or press Calculate.
- Read the knots first, then the supporting figures below it.
Formula
Knots = miles per hour × 0.8689769926
Worked example
For example, with these inputs:
- Miles per hour (mph): 1
the calculator returns:
- Knots: 0.868977 kn
Miles per hour to Knots table
| Miles per hour | Knots |
|---|---|
| 1 mph | 0.868977 kn |
| 2 mph | 1.738 kn |
| 5 mph | 4.3449 kn |
| 10 mph | 8.6898 kn |
| 20 mph | 17.3795 kn |
| 25 mph | 21.7244 kn |
| 50 mph | 43.4488 kn |
| 100 mph | 86.8977 kn |
| 250 mph | 217.2442 kn |
| 500 mph | 434.4885 kn |
| 1,000 mph | 868.977 kn |
About this conversion
Speed conversions come up with expressway limits in km/h, foreign car specs in mph and wind speeds reported in knots by the Meteorological Service.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Frequently asked questions
How many knots are in one miles per hour?
1 mph = 0.868977 kn.
How do I convert mph to kn?
Knots = miles per hour × 0.8689769926.