Knots to Miles per Hour Converter
Convert knots to miles per hour. Free nautical speed converter for sailing, aviation, and weather.Updated 2026-03-15
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Formula: mph = knots × 1.15078
Common Knots to Miles per Hour Conversions
| Knots (kn) | Miles per Hour (mph) |
|---|---|
| 1 kn | 1.15078 mph |
| 5 kn | 5.7539 mph |
| 10 kn | 11.5078 mph |
| 15 kn | 17.2617 mph |
| 20 kn | 23.0156 mph |
| 25 kn | 28.7695 mph |
| 30 kn | 34.5234 mph |
| 40 kn | 46.0312 mph |
| 50 kn | 57.539 mph |
| 60 kn | 69.0468 mph |
| 75 kn | 86.3085 mph |
| 100 kn | 115.078 mph |
| 150 kn | 172.617 mph |
| 200 kn | 230.156 mph |
| 250 kn | 287.695 mph |
| 300 kn | 345.234 mph |
| 400 kn | 460.312 mph |
| 500 kn | 575.39 mph |
How to Convert Knots to Miles per Hour
To convert knots to miles per hour, use the formula: mph = knots × 1.15078
For example, to convert 15 kn to mph: 15 kn = 17.2617 mph
💡 This calculator does the conversion instantly as you type. All calculations happen locally in your browser — no data is sent anywhere.
Frequently Asked Questions
How many mph is a knot?
1 knot equals approximately 1.15078 mph.
Why do ships and planes use knots?
Knots are based on nautical miles, which correspond to 1 minute of latitude — making navigation calculations simpler.
Cite this tool:
"Knots to Miles per Hour Converter." ConvKit, conv-kit.com, https://conv-kit.com/tools/knots-to-mph/. Accessed 2026-03-15.