Knot (kn)
One knot is one nautical mile per hour, defined as exactly 1,852 meters per hour (0.514444 m/s).
Knots are standard for ships, aircraft airspeed, and marine weather forecasts worldwide.
Convert knot to mile per hour instantly. Type in either field — results update live.
Selected kn values converted to mph using the exact factor from this tool.
| kn | mph |
|---|---|
| 0.01 | 0.0115077945 |
| 0.1 | 0.1150779448 |
| 1 | 1.1507794479 |
| 2 | 2.3015588958 |
| 3 | 3.4523383438 |
| 5 | 5.7538972396 |
| 10 | 11.5077944792 |
| 20 | 23.0155889585 |
| 50 | 57.5389723962 |
| 100 | 115.0779447924 |
| 1,000 | 1,150.7794479241 |
Exact conversion factors in both directions, plus a worked example.
1 kn = 1.1507794479 mph
1 mph = 0.868976242 kn
To convert knot to mile per hour, multiply by 1.1507794479.
To convert mile per hour to knot, multiply by 0.868976242.
Example: convert 10 kn to mph
10 × 1.1507794479 = 11.5077944792 mph
Short background on the units used in this conversion.
One knot is one nautical mile per hour, defined as exactly 1,852 meters per hour (0.514444 m/s).
Knots are standard for ships, aircraft airspeed, and marine weather forecasts worldwide.
Miles per hour measure how many statute miles are traveled in one hour — 1 mph equals 0.44704 m/s.
Miles per hour dominate US and UK road speed limits, vehicle gauges, and aviation wind reports.
mph = kn × 1.1507794479kn = mph × 0.868976242, using the same exact factors as this converter.Jump to any speed conversion starting from knot — including the reverse direction and every other unit in our dataset.