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 0.4 knots into feet per second we have to multiply 0.4 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

0.4 kt → V_(ft/s)

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

V_(ft/s) = 0.4 kt × 1.6878098570997 ft/s

V_(ft/s) = 0.67512394283989 ft/s

The final result is:

0.4 kt → 0.67512394283989 ft/s

We conclude that 0.4 knots is equivalent to 0.67512394283989 feet per second:

0.4 knots = 0.67512394283989 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 1.481209503241 × 0.4 knots.

Another way is saying that 0.4 knots is equal to 1 ÷ 1.481209503241 feet per second.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that zero point four knots is approximately zero point six seven five feet per second:

0.4 kt ≅ 0.675 ft/s

An alternative is also that one foot per second is approximately one point four eight one times zero point four 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