37 knots to miles per hour
42.58 mph
37 kn = 42.58 mph.
miles per hour
42.58mph
37 kn = 42.58 mph
In short
How many miles per hour is 37 knots?
37 kn = 42.58 mph. 1 knot = 1.150779 miles per hour, so the working is 37 × 1.150779 = 42.58.
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 37 × 1.150779 = 42.58
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 | 43 | +0.42116 |
| 1 decimal | 42.6 | +0.02116 |
| 2 decimals | 42.58 | +0.00116 |
Round trip: take 42.58 mph back the other way and you land on 37.0010 kn — a drift of 0.0010 kn. That gap is the rounding, not the conversion.
What 37 kn looks like
34 kn
Gale force, the bottom of Beaufort force 8, and the wind speed at which a tropical storm gets its name.
Frequently asked questions
What is 37 knots in miles per hour?
37 knots is 42.58 miles per hour. 1 knot = 1.150779 miles per hour, so the working is 37 × 1.150779 = 42.58.
How accurate is 42.58 mph?
Rounding to 42.58 mph and converting straight back gives 37.0010 kn, a drift of 0.0010 kn from the 37 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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