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 399 feet per second into knots we have to multiply 399 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

399 ft/s → V_(kt)

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

V_(kt) = 399 ft/s × 0.59248380129641 kt

V_(kt) = 236.40103671727 kt

The final result is:

399 ft/s → 236.40103671727 kt

We conclude that 399 feet per second is equivalent to 236.40103671727 knots:

399 feet per second = 236.40103671727 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0042300998924805 × 399 feet per second.

Another way is saying that 399 feet per second is equal to 1 ÷ 0.0042300998924805 knots.

Approximate result

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

399 ft/s ≅ 236.401 kt

An alternative is also that one knot is approximately zero point zero zero four times three hundred ninety-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