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 129 knots into feet per second we have to multiply 129 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

129 kt → V_(ft/s)

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

V_(ft/s) = 129 kt × 1.6878098570997 ft/s

V_(ft/s) = 217.72747156587 ft/s

The final result is:

129 kt → 217.72747156587 ft/s

We conclude that 129 knots is equivalent to 217.72747156587 feet per second:

129 knots = 217.72747156587 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 0.0045928976844683 × 129 knots.

Another way is saying that 129 knots is equal to 1 ÷ 0.0045928976844683 feet per second.

Approximate result

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

129 kt ≅ 217.727 ft/s

An alternative is also that one foot per second is approximately zero point zero zero five times one hundred twenty-nine 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