Miles per hour to Knots
Type a value in Miles per hour and get the result in Knots, calculated exactly.
100 Miles per hour ≈ 86.89762419 Knots
Precision
Exact factorRounded for display to about 10 significant digits.
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Formula
kn = mph × 0.868976241901
To convert Miles per hour to Knots, multiply the value by 0.868976241901.
Worked examples
- 1 mph × 0.868976241901 ≈ 0.8689762419 kn
- 100 mph × 0.868976241901 ≈ 86.89762419 kn
- 50 mph × 0.868976241901 ≈ 43.4488121 kn
This factor is exact by definition.
Conversion table
| Miles per hour (mph) | Knots (kn) |
|---|---|
| 1 | ≈ 0.8689762 |
| 2 | ≈ 1.737952 |
| 3 | ≈ 2.606929 |
| 4 | ≈ 3.475905 |
| 5 | ≈ 4.344881 |
| 6 | ≈ 5.213857 |
| 7 | ≈ 6.082834 |
| 8 | ≈ 6.95181 |
| 9 | ≈ 7.820786 |
| 10 | ≈ 8.689762 |
| 15 | ≈ 13.03464 |
| 20 | ≈ 17.37952 |
| 25 | ≈ 21.72441 |
| 30 | ≈ 26.06929 |
| 40 | ≈ 34.75905 |
| 50 | ≈ 43.44881 |
| 60 | ≈ 52.13857 |
| 70 | ≈ 60.82834 |
| 75 | ≈ 65.17322 |
| 80 | ≈ 69.5181 |
| 90 | ≈ 78.20786 |
| 100 | ≈ 86.89762 |
Values marked ≈ are rounded; the rest are exact.
Reverse table: Knots to Miles per hour
| Knots (kn) | Miles per hour (mph) |
|---|---|
| 1 | ≈ 1.150779 |
| 2 | ≈ 2.301559 |
| 3 | ≈ 3.452338 |
| 4 | ≈ 4.603118 |
| 5 | ≈ 5.753897 |
| 6 | ≈ 6.904677 |
| 7 | ≈ 8.055456 |
| 8 | ≈ 9.206236 |
| 9 | ≈ 10.35702 |
| 10 | ≈ 11.50779 |
| 15 | ≈ 17.26169 |
| 20 | ≈ 23.01559 |
| 25 | ≈ 28.76949 |
| 30 | ≈ 34.52338 |
| 40 | ≈ 46.03118 |
| 50 | ≈ 57.53897 |
| 60 | ≈ 69.04677 |
| 70 | ≈ 80.55456 |
| 75 | ≈ 86.30846 |
| 80 | ≈ 92.06236 |
| 90 | ≈ 103.5702 |
| 100 | ≈ 115.0779 |
Unit definitions
- Miles per hour mph
- One mile per hour: exactly 0.44704 metres per second.
- Knots kn
- One nautical mile per hour: exactly 1.852 km/h.
Questions people ask
Miles per hour to Knots: what is the conversion factor?
One mph is ≈ 0.8689762419 kn.
How do I convert Miles per hour to Knots?
Use the formula above. For example, 100 mph = ≈ 86.89762419 kn.
Is the conversion exact?
Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.
Factors checked 19 October 2026.