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 3980 knots into feet per second we have to multiply 3980 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

3980 kt → V_(ft/s)

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

V_(ft/s) = 3980 kt × 1.6878098570997 ft/s

V_(ft/s) = 6717.483231257 ft/s

The final result is:

3980 kt → 6717.483231257 ft/s

We conclude that 3980 knots is equivalent to 6717.483231257 feet per second:

3980 knots = 6717.483231257 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 0.00014886527670764 × 3980 knots.

Another way is saying that 3980 knots is equal to 1 ÷ 0.00014886527670764 feet per second.

Approximate result

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

3980 kt ≅ 6717.483 ft/s

An alternative is also that one foot per second is approximately zero times three thousand nine hundred eighty 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