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 1644 miles per hour into knots we have to multiply 1644 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

1644 mph → V_(kt)

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

V_(kt) = 1644 mph × 0.8689762419014 kt

V_(kt) = 1428.5969416859 kt

The final result is:

1644 mph → 1428.5969416859 kt

We conclude that 1644 miles per hour is equivalent to 1428.5969416859 knots:

1644 miles per hour = 1428.5969416859 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.00069998749879717 × 1644 miles per hour.

Another way is saying that 1644 miles per hour is equal to 1 ÷ 0.00069998749879717 knots.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one thousand six hundred forty-four miles per hour is approximately one thousand four hundred twenty-eight point five nine seven knots:

1644 mph ≅ 1428.597 kt

An alternative is also that one knot is approximately zero point zero zero one times one thousand six hundred forty-four 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