Convert 21 mph to knots
21 miles per hour = 18.248501096 knots. See the conversion formula, step-by-step calculation, and quick reference table.
21 mph (miles per hour)
= 18.248501096 kn (knots)
Step-by-Step Solution
1
Convert 21 mph to knots
We need to convert miles per hour to knots
2
Apply the formula
Since 1 kn = 1.150779447 mph, divide by 1.150779447
21 ÷ 1.150779447 = 18.248501096
✓
Answer
21 mph = 18.248501096 kn
Miles per Hour to Knots Conversion Table
| Miles per Hour (mph) | Knots (kn) |
|---|---|
| 18 mph | 15.641572368 kn |
| 19 mph | 16.51054861 kn |
| 20 mph | 17.379524853 kn |
| 21 mph | 18.248501096 kn |
| 22 mph | 19.117477338 kn |
| 23 mph | 19.986453581 kn |
| 24 mph | 20.855429824 kn |
| 25 mph | 21.724406066 kn |
| 26 mph | 22.593382309 kn |
| 27 mph | 23.462358552 kn |
Frequently Asked Questions
What is 21 miles per hour in knots?
21 miles per hour equals 18.248501096 knots.
How do I convert 21 mph to kn?
To convert 21 miles per hour to knots, divide 21 by 1.150779447. The result is 18.248501096 kn.
What is the formula for miles per hour to knots?
The formula is: kn = mph ÷ 1.150779447.