Convert Miles per Hour to Knots
mph to kn · speed conversion
What are miles per hour and knots?
Miles per hour is the standard speed unit for roads in the US and UK. A knot is one nautical mile per hour (1.852 km/h), used in aviation and shipping. For reference: a brisk walk is about 5 km/h (3 mph), and highway speed is around 100 km/h (62 mph).
How to convert miles per hour to knots
1 mph = 0.868977 kn. To convert, multiply the number of miles per hour by 0.868977. For example, 5 mph = 4.34488 kn, and 20 mph = 17.3795 kn. To go the other way, multiply knots by 1.15078 (since 1 kn = 1.15078 mph).
Miles per Hour to Knots conversion table
| Miles per Hour (mph) | Knots (kn) |
|---|---|
| 1 | 0.868977 |
| 5 | 4.34488 |
| 10 | 8.68977 |
| 30 | 26.0693 |
| 60 | 52.1386 |
| 100 | 86.8977 |
| 120 | 104.277 |
FAQ
What is 1 mph in kn?
1 mph = 0.868977 kn. To convert any amount, multiply the number of miles per hour by 0.868977.
How do I convert knots back to miles per hour?
Go the other way: 1 kn = 1.15078 mph, so multiply knots by 1.15078 to get miles per hour.
Is a miles per hour bigger than a knot?
No — 1 mph is the smaller unit, equal to 0.868977 kn (it takes 1.15078 mph to make one kn).
Are these speed conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.