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 645 knots into feet per second we have to multiply 645 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

645 kt → V_(ft/s)

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

V_(ft/s) = 645 kt × 1.6878098570997 ft/s

V_(ft/s) = 1088.6373578293 ft/s

The final result is:

645 kt → 1088.6373578293 ft/s

We conclude that 645 knots is equivalent to 1088.6373578293 feet per second:

645 knots = 1088.6373578293 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 0.00091857953689366 × 645 knots.

Another way is saying that 645 knots is equal to 1 ÷ 0.00091857953689366 feet per second.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty-five knots is approximately one thousand eighty-eight point six three seven feet per second:

645 kt ≅ 1088.637 ft/s

An alternative is also that one foot per second is approximately zero point zero zero one times six hundred forty-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