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 620 miles per hour into knots we have to multiply 620 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

620 mph → V_(kt)

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

V_(kt) = 620 mph × 0.8689762419014 kt

V_(kt) = 538.76526997887 kt

The final result is:

620 mph → 538.76526997887 kt

We conclude that 620 miles per hour is equivalent to 538.76526997887 knots:

620 miles per hour = 538.76526997887 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0018560958839073 × 620 miles per hour.

Another way is saying that 620 miles per hour is equal to 1 ÷ 0.0018560958839073 knots.

Approximate result

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

620 mph ≅ 538.765 kt

An alternative is also that one knot is approximately zero point zero zero two times six hundred twenty 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