Speed conversion
Knots to Miles per hour (kn to mph)
1 kn = 1.1508 mph — multiply the number of knots by 1.1508.
Knots to Miles per hour conversion chart
| knots | miles per hour |
|---|---|
| 1 kn | 1.1508 mph |
| 5 kn | 5.7539 mph |
| 10 kn | 11.5078 mph |
| 15 kn | 17.2617 mph |
| 20 kn | 23.0156 mph |
| 25 kn | 28.7695 mph |
| 30 kn | 34.5234 mph |
| 40 kn | 46.0311 mph |
| 50 kn | 57.5389 mph |
| 60 kn | 69.0467 mph |
| 80 kn | 92.0623 mph |
| 100 kn | 115.078 mph |
| 150 kn | 172.617 mph |
| 200 kn | 230.156 mph |
How to convert by hand
1 kn = 1.15077845 mph
Because this is a linear conversion, the ratio never changes: every knot is always 1.1508 mph, whatever the size of the number.
Worked example: 60 kn × 1.1508 = 69.0467 mph .
Related conversions
About knots and miles per hour
Speed conversions are mostly a driving problem: rental cars, speed limits and satnav settings switch between km/h and mph at borders.
Knot
NauticalOne nautical mile per hour, or exactly 1.852 km/h.
Commonly used for: Marine and aviation navigation, and wind speed.
Mile per hour
US / ImperialDistance in miles travelled in one hour.
Commonly used for: Speed limits in the US and UK.
Questions
How many miles per hour are in one knot?
One knot equals 1.1508 mph. To convert any amount, multiply the number of knots by 1.1508.
What is 20 kn in mph?
20 kn = 23.0156 mph. Type any value into the converter above to get an exact answer.
Is this converter accurate?
Yes. Linear conversions use the internationally agreed factors published by NIST (SP 811), and temperature conversions use the exact defining formulas. Calculations run at full double precision and are only rounded for display.
Need a different unit?
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