Conversion formula

The conversion factor from knots to feet per second is 1.6878098570997, which means that 1 knot is equal to 1.6878098570997 feet per second:

1 kt = 1.6878098570997 ft/s

To convert 309.5 knots into feet per second we have to multiply 309.5 by the conversion factor in order to get the velocity amount from knots to feet per second. We can also form a simple proportion to calculate the result:

1 kt → 1.6878098570997 ft/s

309.5 kt → V_(ft/s)

Solve the above proportion to obtain the velocity V in feet per second:

V_(ft/s) = 309.5 kt × 1.6878098570997 ft/s

V_(ft/s) = 522.37715077237 ft/s

The final result is:

309.5 kt → 522.37715077237 ft/s

We conclude that 309.5 knots is equivalent to 522.37715077237 feet per second:

309.5 knots = 522.37715077237 feet per second

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 foot per second is equal to 0.00191432569078 × 309.5 knots.

Another way is saying that 309.5 knots is equal to 1 ÷ 0.00191432569078 feet per second.

Approximate result

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

309.5 kt ≅ 522.377 ft/s

An alternative is also that one foot per second is approximately zero point zero zero two times three hundred nine point five knots.

Conversion table

knots to feet per second chart

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