## 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 809.7 feet per second into knots we have to multiply 809.7 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

809.7 ft/s → V(kt)

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

V(kt) = 809.7 ft/s × 0.59248380129641 kt

V(kt) = 479.7341339097 kt

The final result is:

809.7 ft/s → 479.7341339097 kt

We conclude that 809.7 feet per second is equivalent to 479.7341339097 knots:

809.7 feet per second = 479.7341339097 knots

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0020844879055202 × 809.7 feet per second.

Another way is saying that 809.7 feet per second is equal to 1 ÷ 0.0020844879055202 knots.

## Approximate result

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

809.7 ft/s ≅ 479.734 kt

An alternative is also that one knot is approximately zero point zero zero two times eight hundred nine point seven 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

feet per second (ft/s) knots (kt)
810.7 feet per second 480.327 knots
811.7 feet per second 480.919 knots
812.7 feet per second 481.512 knots
813.7 feet per second 482.104 knots
814.7 feet per second 482.697 knots
815.7 feet per second 483.289 knots
816.7 feet per second 483.882 knots
817.7 feet per second 484.474 knots
818.7 feet per second 485.066 knots
819.7 feet per second 485.659 knots