5 knots to miles per hour
5.75 mph
5 kn = 5.75 mph.
miles per hour
5.75mph
5 kn = 5.75 mph
In short
How many miles per hour is 5 knots?
5 kn = 5.75 mph. 1 knot = 1.150779 miles per hour, so the working is 5 × 1.150779 = 5.75.
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 5 × 1.150779 = 5.75
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 | 6 | +0.24610 |
| 1 decimal | 5.8 | +0.04610 |
| 2 decimals | 5.75 | −0.00390 |
Round trip: take 5.75 mph back the other way and you land on 4.9966 kn — a drift of 0.0034 kn. That gap is the rounding, not the conversion.
Frequently asked questions
What is 5 knots in miles per hour?
5 knots is 5.75 miles per hour. 1 knot = 1.150779 miles per hour, so the working is 5 × 1.150779 = 5.75.
How accurate is 5.75 mph?
Rounding to 5.75 mph and converting straight back gives 4.9966 kn, a drift of 0.0034 kn from the 5 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.
Open the knots to MPH converter →