18 knot ≈ 20.714 mph. To convert knots to miles per hour, multiply by 1.1507785: 18 × 1.1507785 = 20.714.
How to convert knots to miles per hour
mph = knot × 1.1507785
- 1 knot = 1.1507785 mph (and 1 mph = 0.86897699 knot).
- Multiply the amount by the factor: 18 × 1.1507785 = 20.714.
- Answer: 18 knot ≈ 20.714 mph (rounded to 6 significant figures).
Knots to Miles Per Hour table
| Knots (knot) | Miles Per Hour (mph) |
|---|---|
| 13 knot | 14.9601 mph |
| 14 knot | 16.1109 mph |
| 15 knot | 17.2617 mph |
| 16 knot | 18.4125 mph |
| 17 knot | 19.5632 mph |
| 18 knot | 20.714 mph |
| 19 knot | 21.8648 mph |
| 20 knot | 23.0156 mph |
| 21 knot | 24.1663 mph |
| 22 knot | 25.3171 mph |
| 23 knot | 26.4679 mph |
| knot | mph |
|---|---|
| 1 knot | 1.1508 mph |
| 5 knot | 5.7539 mph |
| 10 knot | 11.5078 mph |
| 50 knot | 57.5389 mph |
| 100 knot | 115.078 mph |
| 1,000 knot | 1,150.78 mph |