Knots to Miles Per Hour (kn to mph)
1 kn = 1.15078 mph
and 1 mph = 0.868976 kn
How to convert Knots to Miles Per Hour
mph = kn × 1.15078
To convert, multiply the number of knots by 1.15078. Example: 10 kn × 1.15078 = 11.5078 mph.
1 knot = 1,852 m/h and 1 mph = 1,609.344 m/h, so 1 knot = 1852 ÷ 1609.344 ≈ 1.15078 mph.
Knots are used for boats, aircraft and marine wind forecasts. One knot is one nautical mile (exactly 1,852 m) per hour.
Mental shortcut: multiply by 1.15 (underestimates by about 0.1%).
Knots to Miles Per Hour conversion chart
| Knots | Miles Per Hour |
|---|---|
| 1 kn | 1.15 mph |
| 2 kn | 2.3 mph |
| 3 kn | 3.45 mph |
| 4 kn | 4.6 mph |
| 5 kn | 5.75 mph |
| 6 kn | 6.9 mph |
| 7 kn | 8.06 mph |
| 8 kn | 9.21 mph |
| 9 kn | 10.36 mph |
| 10 kn | 11.51 mph |
| 11 kn | 12.66 mph |
| 12 kn | 13.81 mph |
| 13 kn | 14.96 mph |
| 14 kn | 16.11 mph |
| 15 kn | 17.26 mph |
| 16 kn | 18.41 mph |
| 17 kn | 19.56 mph |
| 18 kn | 20.71 mph |
| 19 kn | 21.86 mph |
| 20 kn | 23.02 mph |
| 21 kn | 24.17 mph |
| 22 kn | 25.32 mph |
| 23 kn | 26.47 mph |
| 24 kn | 27.62 mph |
| 25 kn | 28.77 mph |
| 26 kn | 29.92 mph |
| 27 kn | 31.07 mph |
| 28 kn | 32.22 mph |
| 29 kn | 33.37 mph |
| 30 kn | 34.52 mph |
| Knots | Miles Per Hour |
|---|---|
| 31 kn | 35.67 mph |
| 32 kn | 36.82 mph |
| 33 kn | 37.98 mph |
| 34 kn | 39.13 mph |
| 35 kn | 40.28 mph |
| 36 kn | 41.43 mph |
| 37 kn | 42.58 mph |
| 38 kn | 43.73 mph |
| 39 kn | 44.88 mph |
| 40 kn | 46.03 mph |
| 41 kn | 47.18 mph |
| 42 kn | 48.33 mph |
| 43 kn | 49.48 mph |
| 44 kn | 50.63 mph |
| 45 kn | 51.79 mph |
| 46 kn | 52.94 mph |
| 47 kn | 54.09 mph |
| 48 kn | 55.24 mph |
| 49 kn | 56.39 mph |
| 50 kn | 57.54 mph |
| 55 kn | 63.29 mph |
| 60 kn | 69.05 mph |
| 65 kn | 74.8 mph |
| 70 kn | 80.55 mph |
| 75 kn | 86.31 mph |
| 80 kn | 92.06 mph |
| 85 kn | 97.82 mph |
| 90 kn | 103.57 mph |
| 95 kn | 109.32 mph |
| 100 kn | 115.08 mph |
Values rounded to 2 decimal places (4 below 1). Use the converter above for more precision.
Frequently asked questions
How many miles per hour are in 1 knot?
1 knot = 1.15078 miles per hour. 1 knot = 1,852 m/h and 1 mph = 1,609.344 m/h, so 1 knot = 1852 ÷ 1609.344 ≈ 1.15078 mph.
How do I convert knots to miles per hour?
Multiply the number of knots by 1.15078. Example: 10 kn × 1.15078 = 11.5078 mph.
Is there a quick way to estimate kn to mph in your head?
Yes — multiply by 1.15. This underestimates by about 0.1%. Use the exact formula (mph = kn × 1.15078) when precision matters.