11 knots to miles per hour
12.66 mph
11 kn = 12.66 mph.
miles per hour
12.66mph
11 kn = 12.66 mph
In short
How many miles per hour is 11 knots?
11 kn = 12.66 mph. 1 knot = 1.150779 miles per hour, so the working is 11 × 1.150779 = 12.66.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 knot = 1.150779 miles per hour 11 × 1.150779 = 12.66
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (mph) | Off by |
|---|---|---|
| Whole number | 13 | +0.34143 |
| 1 decimal | 12.7 | +0.04143 |
| 2 decimals | 12.66 | +0.00143 |
Round trip: take 12.66 mph back the other way and you land on 11.0012 kn — a drift of 0.0012 kn. That gap is the rounding, not the conversion.
Frequently asked questions
What is 11 knots in miles per hour?
11 knots is 12.66 miles per hour. 1 knot = 1.150779 miles per hour, so the working is 11 × 1.150779 = 12.66.
How accurate is 12.66 mph?
Rounding to 12.66 mph and converting straight back gives 11.0012 kn, a drift of 0.0012 kn from the 11 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
Knots to MPH Converter
Convert knots to miles per hour — boat speed, wind speed, and aviation.
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