Convert 12 kn to mph
12 knots = 13.809353 miles per hour
Sumwise · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How we check it
How to convert knots to miles per hour
- Formula:
miles per hour = knots × 1.150779 - Put in the value: 12 knots.
- Result: 13.809353 miles per hour.
Knots to miles per hour table
| knots | miles per hour |
|---|---|
| 1 kn | 1.150779 mph |
| 2 kn | 2.301559 mph |
| 5 kn | 5.753897 mph |
| 10 kn | 11.507794 mph |
| 12 kn | 13.809353 mph |
| 20 kn | 23.015589 mph |
| 50 kn | 57.538972 mph |
| 100 kn | 115.077945 mph |
| 500 kn | 575.389724 mph |
| 1,000 kn | 1,150.78 mph |
Converting the other way: miles per hour to knots
knots = miles per hour × 0.86897624. So 13.809353 miles per hour is back to 12 knots; one mile per hour is 0.86897624 knots. See the miles per hour to knots table.
Quick estimate in your head
For a rough answer, multiply by about 1.2: 12 × 1.2 ≈ 14.4 mph, against the exact 13.809353 mph (4.3% out). Good enough to check that a calculated result is sensible.
Common mistakes
The usual slip is using the factor the wrong way round. A knot is bigger than a mile per hour, so the number of miles per hour must come out larger than the number of knots. If your answer goes the other way, divide instead of multiplying.
About the units
Knot (kn) and mile per hour (mph) are both units of speed. One knot equals 1.150779 miles per hour, and one mile per hour equals 0.86897624 knots. Results on this page are rounded for display; the conversion itself uses the exact definitions.
Speed conversions come up when driving abroad, in running and cycling paces, weather and wind reports, and sailing and flying.
12 knots in other units
The most readable unit for this amount is meters per second (6.173333).
How answers are calculated and checked: methodology.
Questions
How many miles per hour are in 12 knots?
13.809353 miles per hour.
What is the formula to convert knots to miles per hour?
miles per hour = knots × 1.150779
How many miles per hour are in one knot?
One knot is 1.150779 miles per hour, so multiply any number of knots by 1.150779.
Is 12 kn more than 12 mph?
Yes. 12 knots is 13.809353 miles per hour, which is more than 12 miles per hour.
How do I convert knots to miles per hour in a spreadsheet?
Put the number of knots in A1 and type =A1*1.150779 in the next cell. Fill the formula down to convert a whole column.