Convert mph to knots
Convert miles per hour to knots by entering a value below.
How to Convert Miles per Hour to Knots
The mile per hour and knot are both units of speed. 1 knot equals 1.150779447 miles per hour. This means to convert miles per hour to knots, you divide by 1.150779447.
Formula
Step-by-Step Example
Convert 5 mph to knots:
We need to convert miles per hour to knots
Since 1 kn = 1.150779447 mph, divide by 1.150779447
5 ÷ 1.150779447 = 4.3448812133
5 mph = 4.3448812133 kn
Mile per Hour to Knot Conversion Table
Quick reference table for common mile per hour to knot conversions. Click any value for detailed calculation.
| Miles per Hour (mph) | Knots (kn) |
|---|---|
| 1 mph | 0.8689762427 kn |
| 2 mph | 1.7379524853 kn |
| 5 mph | 4.3448812133 kn |
| 10 mph | 8.6897624265 kn |
| 15 mph | 13.03464364 kn |
| 20 mph | 17.379524853 kn |
| 25 mph | 21.724406066 kn |
| 50 mph | 43.448812133 kn |
| 100 mph | 86.897624265 kn |
About These Units
Mile per Hour (mph)
Miles per hour (mph) is the standard speed unit for vehicles and speed limits in the United States, United Kingdom, and a few other countries. To convert mph to km/h, multiply by 1.609. Common speeds: walking 3 mph, city driving 30 mph, highway 65-75 mph.
Knot (kn)
A knot (kn or kt) equals one nautical mile per hour, approximately 1.151 mph or 1.852 km/h. Knots are the standard speed unit for ships, aircraft, and wind in maritime and aviation worldwide. Origin: sailors counted knots on a rope trailing behind the ship.
Frequently Asked Questions
How do I convert miles per hour to knots?
To convert miles per hour to knots, divide the value by 1.150779447. For example, 10 mph = 8.6897624265 kn.
How many knots are in 1 mile per hour?
1 mile per hour equals 0.8689762427 knots.
What is the formula for miles per hour to knots?
The formula is: kn = mph ÷ 1.150779447.