Enter a value and select Convert.
How to use this converter
Choose knots to MPH or the reverse MPH to knots direction, then select Convert. Automatic precision preserves a concise significant-digit result; fixed 2, 4, or 6 decimal-place display affects presentation only. Comma decimals and expressions are rejected rather than guessed.
Definition and review
Constants follow NIST Guide to the SI, Appendix B.8. Values are calculated locally; raw numbers are not uploaded, stored, placed in URLs, or included in analytics.
Common knots conversions
| Knots (kn) | Miles per hour (mph) |
|---|---|
| 1 kn | 1.150779448 mph |
| 5 kn | 5.75389724 mph |
| 10 kn | 11.50779448 mph |
| 20 kn | 23.01558896 mph |
| 50 kn | 57.5389724 mph |
| 100 kn | 115.0779448 mph |