Convert Knots to Miles per hour
1 knot is 1.150779 mph. One knot is exactly 1.15077944802 miles per hour.
One knot is 1.1507794 miles per hour. To convert knots to miles per hour, multiply by 1.1507794; to go the other way, divide by 1.1507794 or multiply by 0.86897624. The factor is exact rather than rounded: it follows from NIST Special Publication 811. One nautical mile per hour — exactly 1,852 metres per hour.
Factor checked against the defining standard · How we check
Miles per hour
1.150779 mph
- Knots × 1.1507794
value * 1.150779448021.151 mph
1 knot in every speed unit
| Unit | Value | Exact factor |
|---|---|---|
| metres per second | 0.5144444444 m/s | × 0.514444444444 |
| kilometres per hour | 1.852 km/h | × 1.852 |
| miles per hour | 1.150779448 mph | × 1.15077944802 |
| knots (as entered) | 1 kn | — |
| feet per second | 1.687809857 ft/s | × 1.6878098571 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert knots to miles per hour?
- 1.Take the measurement in knots.
- 2.Multiply by 1.1507794 — that is how many miles per hour fit in one knot.
- 3.To go back the other way, divide by 1.1507794, or multiply by 0.86897624.
Knots to miles per hour conversion table
| Knots | Miles per hour |
|---|---|
| 1 kn | 1.150779 mph |
| 2 kn | 2.301559 mph |
| 3 kn | 3.452338 mph |
| 4 kn | 4.603118 mph |
| 5 kn | 5.753897 mph |
| 6 kn | 6.904677 mph |
| 7 kn | 8.055456 mph |
| 8 kn | 9.206236 mph |
| 9 kn | 10.357015 mph |
| 10 kn | 11.507794 mph |
| 12 kn | 13.809353 mph |
| 15 kn | 17.261692 mph |
| 20 kn | 23.015589 mph |
| 25 kn | 28.769486 mph |
| 50 kn | 57.538972 mph |
| 100 kn | 115.077945 mph |
What are knots and miles per hour?
- Knot (kn)
- One nautical mile per hour — exactly 1,852 metres per hour. Used at sea and in the air because a nautical mile is one minute of latitude, which makes navigation arithmetic simple.
- Mile per hour (mph)
- Exactly 0.44704 m/s, because a mile is exactly 1,609.344 metres. US and UK road speeds.
Source: NIST Special Publication 811 — conversion factors for speed
Questions people actually ask
- How many miles per hour are in a knot?
- 1.1507794. Exactly 0.44704 m/s, because a mile is exactly 1,609.344 metres. US and UK road speeds.
- How do I convert miles per hour back to knots?
- Divide by 1.1507794, or multiply by 0.86897624 — they are the same operation.
Other speed conversions
Miles per hour to knots — the same conversion the other way.