Miles per Hour to Knots Converter
1 mile per hour = 0.868976 knots.
Enter a value
Result
1 mile per hour =
0.868976 kn
1 mph × 0.868976 = 0.868976 kn
1 mph = 1.609344 km/h exactly
The working
- 1. Convert 1 mph to metre per seconds: 1 × 0.44704 = 0.44704.
- 2. Convert to kn: 0.44704 ÷ 0.514444 = 0.868976.
1 mph 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
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 |
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 |
Formula and worked example
knots = miles per hour × 0.8689762419 (1 mph is exactly 1.609344 km/h; 1 knot is exactly 1.852 km/h).
Convert 30 miles per hour to knots: 30 × 0.86897624 = 26.0693 kn.
When you need this
Sailors and pilots convert land speeds and wind forecasts in mph into knots for navigation.
Questions people ask
How many knots are in a mile per hour?
One mile per hour is 0.86897624 knots. 1 mph is exactly 1.609344 km/h.
How do I convert miles per hour to knots?
Multiply the number of miles per hour by 0.86897624, or divide by 1.1507794.
What is 10 mph in kn?
10 miles per hour is 8.68976 knots.
How do I convert knots back to miles per hour?
Multiply by 1.1507794: one knot is 1.1507794 miles per hour.
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.
Spotted a mistake? Tell us and we'll check it. How we check our calculators