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 139 miles per hour into knots we have to multiply 139 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

139 mph → V_(kt)

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

V_(kt) = 139 mph × 0.8689762419014 kt

V_(kt) = 120.78769762429 kt

The final result is:

139 mph → 120.78769762429 kt

We conclude that 139 miles per hour is equivalent to 120.78769762429 knots:

139 miles per hour = 120.78769762429 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0082789888346946 × 139 miles per hour.

Another way is saying that 139 miles per hour is equal to 1 ÷ 0.0082789888346946 knots.

Approximate result

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

139 mph ≅ 120.788 kt

An alternative is also that one knot is approximately zero point zero zero eight times one hundred thirty-nine 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