Velocity
kntomph
Convert knots (kn) to miles per hour (mph).
Factor1 kn = 1.150779 mph
Converter
kn
Accepts numbers or expressions, e.g. 150 + 14.7
Result
mph
Rendered to 6 significant figures.
Formula
Formula
mph = kn × 1.150779
Multiply any value in knots by 1.150779 to obtain the value in miles per hour.
Worked example
Convert 50 kn to mph.
- 01Start with 50 kn.
- 02Multiply by the conversion factor: 50 × 1.150779 = 57.539 mph.
Result50 kn = 57.539 mph
Conversion table
| kn | mph |
|---|---|
| 1 | 1.1508 |
| 2 | 2.3016 |
| 5 | 5.7539 |
| 10 | 11.508 |
| 20 | 23.016 |
| 50 | 57.539 |
| 100 | 115.08 |
| 200 | 230.16 |
| 500 | 575.39 |
| 1000 | 1150.8 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kn to mph?
1 kn equals 1.150779 mph. To convert, multiply the value in knots by 1.150779.
How do I convert 1 kn to mph?
1 kn = 1.15078 mph. For any value, multiply by 1.150779.
How do I convert mph back to kn?
Divide by the same factor — or equivalently, multiply by 0.8689762. So 1 mph = 0.868976 kn.
When would I need to convert knot to mile per hour?
Velocity conversions are needed for fluid flow analysis (line velocity targets, erosional limits), gas-stream calculations, and equipment specs that mix m/s, ft/s and engineering speed units.
Is the conversion exact?
Yes. Both kn and mph are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).