Miles per hour to Knots Converter mph → kn
1 mile per hour (mph) = 0.8689762419 knots (kn). Type a value below — the conversion happens instantly, entirely on your device.
1 mph = 0.8689762419 kn
1 miles per hour = 0.86897624 knots
1 × 0.868976 = 0.86897624
1 mph equals 0.868976 kn, so multiplying by 0.868976 converts the value. The result describes the exact same quantity — only the measuring stick changes.
How to convert miles per hour to knots
knots = miles per hour × 0.8689762419 — multiply the mile per hour value by 0.868976.
Example: 10 mph = 8.68976 kn.
To convert the other way: miles per hour = knots ÷ 0.8689762419 — or use the dedicated kn to mph converter .
Miles per hour to Knots conversion table
| Miles per hour (mph) | Knots (kn) |
|---|---|
| 0.1 | 0.086897624 |
| 0.25 | 0.21724406 |
| 0.5 | 0.43448812 |
| 1 | 0.86897624 |
| 2 | 1.7379525 |
| 3 | 2.6069287 |
| 4 | 3.475905 |
| 5 | 4.3448812 |
| 6 | 5.2138575 |
| 7 | 6.0828337 |
| 8 | 6.9518099 |
| 9 | 7.8207862 |
| 10 | 8.6897624 |
| 15 | 13.034644 |
| 20 | 17.379525 |
| 25 | 21.724406 |
| 30 | 26.069287 |
| 40 | 34.75905 |
| 50 | 43.448812 |
| 75 | 65.173218 |
| 100 | 86.897624 |
| 250 | 217.24406 |
| 500 | 434.48812 |
| 1000 | 868.97624 |
About the units
What is a mile per hour?
Miles per hour (mph) is the road-speed unit of the United States and United Kingdom. 1 mph is exactly 1.609344 km/h.
What is a knot?
A knot (kn) is one nautical mile per hour, exactly 1.852 km/h. Aircraft, ships and wind speeds in meteorology are measured in knots.
Frequently asked questions
How many knots are in 1 mile per hour?
1 mile per hour (mph) = 0.8689762419 knots (kn).
What is the formula to convert miles per hour to knots?
knots = miles per hour × 0.8689762419 — multiply the mile per hour value by 0.868976.
How do I convert mph to kn without a calculator?
Multiply by 0.869 for a close estimate. Exact factor: 1 mph = 0.8689762419 kn.
Is this mph-to-kn converter accurate and private?
Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.
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