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 742.4 miles per hour into knots we have to multiply 742.4 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

742.4 mph → V_(kt)

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

V_(kt) = 742.4 mph × 0.8689762419014 kt

V_(kt) = 645.1279619876 kt

The final result is:

742.4 mph → 645.1279619876 kt

We conclude that 742.4 miles per hour is equivalent to 645.1279619876 knots:

742.4 miles per hour = 645.1279619876 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0015500800754614 × 742.4 miles per hour.

Another way is saying that 742.4 miles per hour is equal to 1 ÷ 0.0015500800754614 knots.

Approximate result

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

742.4 mph ≅ 645.128 kt

An alternative is also that one knot is approximately zero point zero zero two times seven hundred forty-two point 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