Convert mph to kn instantly — with a table, common speeds, and a live calculator.
1 mph equals 0.869 kn.
| mph | kn |
|---|---|
| 1 mph | 0.869 kn |
| 2 mph | 1.74 kn |
| 3 mph | 2.61 kn |
| 5 mph | 4.34 kn |
| 10 mph | 8.69 kn |
| 15 mph | 13.03 kn |
| 20 mph | 17.38 kn |
| 25 mph | 21.72 kn |
| 30 mph | 26.07 kn |
| 40 mph | 34.76 kn |
| 50 mph | 43.45 kn |
| 55 mph | 47.79 kn |
| 60 mph | 52.14 kn |
| 65 mph | 56.48 kn |
| 70 mph | 60.83 kn |
| 80 mph | 69.52 kn |
| 90 mph | 78.21 kn |
| 100 mph | 86.9 kn |
| 120 mph | 104.28 kn |
| 150 mph | 130.35 kn |
| 200 mph | 173.8 kn |
| 300 mph | 260.69 kn |
| kn | mph |
|---|---|
| 1 kn | 1.15 mph |
| 2 kn | 2.3 mph |
| 3 kn | 3.45 mph |
| 5 kn | 5.75 mph |
| 10 kn | 11.51 mph |
| 15 kn | 17.26 mph |
| 20 kn | 23.02 mph |
| 25 kn | 28.77 mph |
| 30 kn | 34.52 mph |
| 40 kn | 46.03 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 |
| 80 kn | 92.06 mph |
| 90 kn | 103.57 mph |
| 100 kn | 115.08 mph |
| 120 kn | 138.09 mph |
| 150 kn | 172.62 mph |
| 200 kn | 230.16 mph |
| 300 kn | 345.23 mph |
| mph | kn |
|---|---|
| 5 mph | 4.34 kn |
| 10 mph | 8.69 kn |
| 20 mph | 17.38 kn |
| 30 mph | 26.07 kn |
| 40 mph | 34.76 kn |
| 50 mph | 43.45 kn |
| 60 mph | 52.14 kn |
| 70 mph | 60.83 kn |
| 80 mph | 69.52 kn |
| 100 mph | 86.9 kn |
| 120 mph | 104.28 kn |
| 200 mph | 173.8 kn |
Kilometers per hour and meters per second are metric, miles per hour and feet per second belong to the imperial/US system, and knots (one nautical mile per hour) come from maritime and aviation use. One mile per hour is defined as exactly 0.44704 meters per second, and one knot as exactly 1.852 km/h.
Speed conversions are exact and rest on fixed factors — for more unit pairs, use our speed conversion hub.
1 mph equals 0.869 kn.
2 mph equal 1.74 kn.
Divide the speed in mph by 1.15 to get kn.
A knot is one nautical mile per hour and equals exactly 1.852 km/h (about 1.15078 mph). Knots are used in maritime and aviation contexts.
Kilometers per hour and meters per second are metric, miles per hour and feet per second belong to the imperial/US system, and knots come from maritime and aviation use. All conversions rest on fixed factors.
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