21.1 miles per hour in knots

How many knots in 21.1 miles per hour?

21.1 miles per hour equals 18.335 knots

Unit Converter

Conversion formula

The conversion factor from miles per hour to knots is 0.8689762419014, which means that 1 mile per hour is equal to 0.8689762419014 knots:

1 mph = 0.8689762419014 kt

To convert 21.1 miles per hour into knots we have to multiply 21.1 by the conversion factor in order to get the velocity amount from miles per hour to knots. We can also form a simple proportion to calculate the result:

1 mph → 0.8689762419014 kt

21.1 mph → V(kt)

Solve the above proportion to obtain the velocity V in knots:

V(kt) = 21.1 mph × 0.8689762419014 kt

V(kt) = 18.33539870412 kt

The final result is:

21.1 mph → 18.33539870412 kt

We conclude that 21.1 miles per hour is equivalent to 18.33539870412 knots:

21.1 miles per hour = 18.33539870412 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.054539310332822 × 21.1 miles per hour.

Another way is saying that 21.1 miles per hour is equal to 1 ÷ 0.054539310332822 knots.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty-one point one miles per hour is approximately eighteen point three three five knots:

21.1 mph ≅ 18.335 kt

An alternative is also that one knot is approximately zero point zero five five times twenty-one point one miles per hour.

Conversion table

miles per hour to knots chart

For quick reference purposes, below is the conversion table you can use to convert from miles per hour to knots

miles per hour (mph) knots (kt)
22.1 miles per hour 19.204 knots
23.1 miles per hour 20.073 knots
24.1 miles per hour 20.942 knots
25.1 miles per hour 21.811 knots
26.1 miles per hour 22.68 knots
27.1 miles per hour 23.549 knots
28.1 miles per hour 24.418 knots
29.1 miles per hour 25.287 knots
30.1 miles per hour 26.156 knots
31.1 miles per hour 27.025 knots