Knots to Miles per Hour (kn to mph) Converter
1 knot (kn) = 1.15078 miles per hour (mph). To convert knots to miles per hour, multiply by 1.15078: 20 kn × 1.15078 = 23.0156 mph.
Quick facts
- 1 kn = 1.15078 mph
- 1 mph = 0.868976 kn
- Formula: mph = kn × 1.15078
- Quick estimate: multiply by about 1.2
How to convert knots to miles per hour
- Take the value in knots.
- Multiply it by 1.15078 (the number of miles per hour in one knot).
- Round the result to the precision you need.
Worked example (a ferry's cruising speed): 20 kn × 1.15078 = 23.0156 mph.
To convert miles per hour back to knots, multiply by 0.868976, or divide by 1.15078.
Source: NIST SP 811 (2008), derived from the metre, the international mile and the second.
Knots to Miles per Hour conversion table
| Knots [kn] | Miles per Hour [mph] |
|---|---|
| 0.01 kn | 0.0115077945 mph |
| 0.1 kn | 0.1150779448 mph |
| 1 kn | 1.1507794479 mph |
| 2 kn | 2.3015588958 mph |
| 3 kn | 3.4523383438 mph |
| 5 kn | 5.7538972396 mph |
| 10 kn | 11.5077944792 mph |
| 20 kn | 23.0155889585 mph |
| 50 kn | 57.5389723962 mph |
| 100 kn | 115.0779447924 mph |
| 1000 kn | 1150.7794479241 mph |
kn to mph chart from 1 to 100
- 1 kn 1.15078 mph
- 2 kn 2.30156 mph
- 3 kn 3.45234 mph
- 4 kn 4.60312 mph
- 5 kn 5.7539 mph
- 6 kn 6.90468 mph
- 7 kn 8.05546 mph
- 8 kn 9.20624 mph
- 9 kn 10.357 mph
- 10 kn 11.5078 mph
- 11 kn 12.6586 mph
- 12 kn 13.8094 mph
- 13 kn 14.9601 mph
- 14 kn 16.1109 mph
- 15 kn 17.2617 mph
- 16 kn 18.4125 mph
- 17 kn 19.5633 mph
- 18 kn 20.714 mph
- 19 kn 21.8648 mph
- 20 kn 23.0156 mph
- 25 kn 28.7695 mph
- 30 kn 34.5234 mph
- 35 kn 40.2773 mph
- 40 kn 46.0312 mph
- 45 kn 51.7851 mph
- 50 kn 57.539 mph
- 55 kn 63.2929 mph
- 60 kn 69.0468 mph
- 65 kn 74.8007 mph
- 70 kn 80.5546 mph
- 75 kn 86.3085 mph
- 80 kn 92.0624 mph
- 85 kn 97.8163 mph
- 90 kn 103.57 mph
- 95 kn 109.324 mph
- 100 kn 115.078 mph
Miles per Hour to Knots conversion table
| Miles per Hour [mph] | Knots [kn] |
|---|---|
| 0.01 mph | 0.0086897624 kn |
| 0.1 mph | 0.0868976242 kn |
| 1 mph | 0.868976242 kn |
| 2 mph | 1.737952484 kn |
| 3 mph | 2.6069287259 kn |
| 5 mph | 4.3448812099 kn |
| 10 mph | 8.6897624198 kn |
| 20 mph | 17.3795248395 kn |
| 50 mph | 43.4488120988 kn |
| 100 mph | 86.8976241976 kn |
| 1000 mph | 868.9762419757 kn |
Knots vs Miles per Hour
| Knot | Mile per Hour | |
|---|---|---|
| Symbol | kn | mph |
| Equals | 1 kn = 1.15078 mph | 1 mph = 0.868976 kn |
What is a knot?
Equal to one nautical mile per hour. Used in maritime and aviation navigation worldwide.
What is a mile per hour?
Distance in miles covered in one hour. The standard speed unit for driving and wind speed in the US and UK.
Frequently asked questions
How many miles per hour are in a knot?
There are 1.15078 miles per hour in 1 knot (1 kn = 1.1507794479 mph).
How many knots are in a mile per hour?
There are 0.868976 knots in 1 mile per hour (1 mph = 0.868976242 kn).
How do I convert knots to miles per hour?
Multiply the number of knots by 1.15078. For example, 10 kn × 1.15078 = 11.5078 mph. To convert back, multiply by 0.868976.
What is 10 kn in miles per hour?
10 kn = 11.5078 mph.
What is 100 kn in miles per hour?
100 kn = 115.078 mph.
Is the conversion exact?
Yes. The factor comes from the official definitions of both units (NIST SP 811 (2008), derived from the metre, the international mile and the second). Results are shown to up to 10 decimal places; round them to suit your purpose.
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