Enter a value and select Convert.
How to use this converter
Enter a signed decimal where allowed, then select Convert or press Enter. Comma decimals and expressions are rejected rather than guessed. Copy produces a plain conversion statement without promotional text.
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 |