## Conversion formula

The conversion factor from feet per second to knots is 0.59248380129641, which means that 1 foot per second is equal to 0.59248380129641 knots:

1 ft/s = 0.59248380129641 kt

To convert 0.4 feet per second into knots we have to multiply 0.4 by the conversion factor in order to get the velocity amount from feet per second to knots. We can also form a simple proportion to calculate the result:

1 ft/s → 0.59248380129641 kt

0.4 ft/s → V(kt)

Solve the above proportion to obtain the velocity V in knots:

V(kt) = 0.4 ft/s × 0.59248380129641 kt

V(kt) = 0.23699352051856 kt

The final result is:

0.4 ft/s → 0.23699352051856 kt

We conclude that 0.4 feet per second is equivalent to 0.23699352051856 knots:

0.4 feet per second = 0.23699352051856 knots

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 4.2195246427493 × 0.4 feet per second.

Another way is saying that 0.4 feet per second is equal to 1 ÷ 4.2195246427493 knots.

## Approximate result

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

0.4 ft/s ≅ 0.237 kt

An alternative is also that one knot is approximately four point two two times zero point four feet per second.

## Conversion table

### feet per second to knots chart

For quick reference purposes, below is the conversion table you can use to convert from feet per second to knots

feet per second (ft/s) knots (kt)
1.4 feet per second 0.829 knots
2.4 feet per second 1.422 knots
3.4 feet per second 2.014 knots
4.4 feet per second 2.607 knots
5.4 feet per second 3.199 knots
6.4 feet per second 3.792 knots
7.4 feet per second 4.384 knots
8.4 feet per second 4.977 knots
9.4 feet per second 5.569 knots
10.4 feet per second 6.162 knots