Conversion formula

The conversion factor from feet per second to knots is 0.59248380129641, which means that 1 foot per second is equal to 0.59248380129641 knots:

1 ft/s = 0.59248380129641 kt

To convert 8439 feet per second into knots we have to multiply 8439 by the conversion factor in order to get the velocity amount from feet per second to knots. We can also form a simple proportion to calculate the result:

1 ft/s → 0.59248380129641 kt

8439 ft/s → V_(kt)

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

V_(kt) = 8439 ft/s × 0.59248380129641 kt

V_(kt) = 4999.9707991404 kt

The final result is:

8439 ft/s → 4999.9707991404 kt

We conclude that 8439 feet per second is equivalent to 4999.9707991404 knots:

8439 feet per second = 4999.9707991404 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.00020000116804121 × 8439 feet per second.

Another way is saying that 8439 feet per second is equal to 1 ÷ 0.00020000116804121 knots.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eight thousand four hundred thirty-nine feet per second is approximately four thousand nine hundred ninety-nine point nine seven one knots:

8439 ft/s ≅ 4999.971 kt

An alternative is also that one knot is approximately zero times eight thousand four hundred thirty-nine feet per second.

Conversion table

feet per second to knots chart

For quick reference purposes, below is the conversion table you can use to convert from feet per second to knots