## 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 397 feet per second into knots we have to multiply 397 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

397 ft/s → V(kt)

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

V(kt) = 397 ft/s × 0.59248380129641 kt

V(kt) = 235.21606911467 kt

The final result is:

397 ft/s → 235.21606911467 kt

We conclude that 397 feet per second is equivalent to 235.21606911467 knots:

397 feet per second = 235.21606911467 knots

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0042514102193948 × 397 feet per second.

Another way is saying that 397 feet per second is equal to 1 ÷ 0.0042514102193948 knots.

## Approximate result

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

397 ft/s ≅ 235.216 kt

An alternative is also that one knot is approximately zero point zero zero four times three hundred ninety-seven 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)
398 feet per second 235.809 knots
399 feet per second 236.401 knots
400 feet per second 236.994 knots
401 feet per second 237.586 knots
402 feet per second 238.178 knots
403 feet per second 238.771 knots
404 feet per second 239.363 knots
405 feet per second 239.956 knots
406 feet per second 240.548 knots
407 feet per second 241.141 knots