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 251 knots into feet per second we have to multiply 251 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

251 kt → V_(ft/s)

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

V_(ft/s) = 251 kt × 1.6878098570997 ft/s

V_(ft/s) = 423.64027413203 ft/s

The final result is:

251 kt → 423.64027413203 ft/s

We conclude that 251 knots is equivalent to 423.64027413203 feet per second:

251 knots = 423.64027413203 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 0.0023604932322566 × 251 knots.

Another way is saying that 251 knots is equal to 1 ÷ 0.0023604932322566 feet per second.

Approximate result

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

251 kt ≅ 423.64 ft/s

An alternative is also that one foot per second is approximately zero point zero zero two times two hundred fifty-one 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