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 8421 knots into feet per second we have to multiply 8421 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

8421 kt → V_(ft/s)

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

V_(ft/s) = 8421 kt × 1.6878098570997 ft/s

V_(ft/s) = 14213.046806637 ft/s

The final result is:

8421 kt → 14213.046806637 ft/s

We conclude that 8421 knots is equivalent to 14213.046806637 feet per second:

8421 knots = 14213.046806637 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 7.0357891140768E-5 × 8421 knots.

Another way is saying that 8421 knots is equal to 1 ÷ 7.0357891140768E-5 feet per second.

Approximate result

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

8421 kt ≅ 14213.047 ft/s

An alternative is also that one foot per second is approximately zero times eight thousand four hundred twenty-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