## 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 391 feet per second into knots we have to multiply 391 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

391 ft/s → V(kt)

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

V(kt) = 391 ft/s × 0.59248380129641 kt

V(kt) = 231.6611663069 kt

The final result is:

391 ft/s → 231.6611663069 kt

We conclude that 391 feet per second is equivalent to 231.6611663069 knots:

391 feet per second = 231.6611663069 knots

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0043166492508945 × 391 feet per second.

Another way is saying that 391 feet per second is equal to 1 ÷ 0.0043166492508945 knots.

## Approximate result

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

391 ft/s ≅ 231.661 kt

An alternative is also that one knot is approximately zero point zero zero four times three hundred ninety-one 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)
392 feet per second 232.254 knots
393 feet per second 232.846 knots
394 feet per second 233.439 knots
395 feet per second 234.031 knots
396 feet per second 234.624 knots
397 feet per second 235.216 knots
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