Knots to Miles per Hour Converter
1 knot = 1.15078 miles per hour.
Enter a value
Result
1 knot =
1.15078 mph
1 kn × 1.15078 = 1.15078 mph
1 mph = 1.609344 km/h exactly
The working
- 1. Convert 1 kn to metre per seconds: 1 × 0.514444 = 0.514444.
- 2. Convert to mph: 0.514444 ÷ 0.44704 = 1.15078.
1 kn in every unit
Typical speeds
- Walking
- 5 km/h
- Cycling
- 20 km/h
- Motorway limit (UK)
- 70 mph
- Speed of sound
- 1,235 km/h
Conversion table
Knots to Miles per hour
| Knots | Miles per hour |
|---|---|
| 1 | 1.1508 |
| 2 | 2.3016 |
| 3 | 3.4523 |
| 4 | 4.6031 |
| 5 | 5.7539 |
| 6 | 6.9047 |
| 7 | 8.0555 |
| 8 | 9.2062 |
| 9 | 10.357 |
| 10 | 11.508 |
| 15 | 17.262 |
| 20 | 23.016 |
| 25 | 28.769 |
| 50 | 57.539 |
| 100 | 115.08 |
Miles per hour to Knots
| Miles per hour | Knots |
|---|---|
| 1 | 0.86898 |
| 2 | 1.738 |
| 3 | 2.6069 |
| 4 | 3.4759 |
| 5 | 4.3449 |
| 6 | 5.2139 |
| 7 | 6.0828 |
| 8 | 6.9518 |
| 9 | 7.8208 |
| 10 | 8.6898 |
| 15 | 13.035 |
| 20 | 17.38 |
| 25 | 21.724 |
| 50 | 43.449 |
| 100 | 86.898 |
Formula and worked example
miles per hour = knots × 1.150779448 (1 knot is exactly 1.852 km/h; 1 mph is exactly 1.609344 km/h).
Convert 20 knots to miles per hour: 20 × 1.1507794 = 23.0156 mph.
When you need this
Wind speeds in marine forecasts, boat speeds and aircraft airspeeds are given in knots. Converting to mph makes them easier to picture on land.
Questions people ask
How many miles per hour are in a knot?
One knot is 1.1507794 miles per hour. 1 knot is exactly 1.852 km/h.
How do I convert knots to miles per hour?
Multiply the number of knots by 1.1507794.
What is 10 kn in mph?
10 knots is 11.5078 miles per hour.
How do I convert miles per hour back to knots?
Multiply by 0.86897624: one mile per hour is 0.86897624 knots.
Related conversions
How we calculate this
We use the standard published formula or definition for this calculation, and we show the working so you can check it. Source: NIST Special Publication 811, Guide for the Use of the International System of Units.
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