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 743 miles per hour into knots we have to multiply 743 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

743 mph → V_(kt)

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

V_(kt) = 743 mph × 0.8689762419014 kt

V_(kt) = 645.64934773274 kt

The final result is:

743 mph → 645.64934773274 kt

We conclude that 743 miles per hour is equivalent to 645.64934773274 knots:

743 miles per hour = 645.64934773274 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0015488283284287 × 743 miles per hour.

Another way is saying that 743 miles per hour is equal to 1 ÷ 0.0015488283284287 knots.

Approximate result

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

743 mph ≅ 645.649 kt

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