## 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 657 feet per second into knots we have to multiply 657 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

657 ft/s → V(kt)

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

V(kt) = 657 ft/s × 0.59248380129641 kt

V(kt) = 389.26185745174 kt

The final result is:

657 ft/s → 389.26185745174 kt

We conclude that 657 feet per second is equivalent to 389.26185745174 knots:

657 feet per second = 389.26185745174 knots

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0025689647748854 × 657 feet per second.

Another way is saying that 657 feet per second is equal to 1 ÷ 0.0025689647748854 knots.

## Approximate result

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

657 ft/s ≅ 389.262 kt

An alternative is also that one knot is approximately zero point zero zero three times six hundred fifty-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)
658 feet per second 389.854 knots
659 feet per second 390.447 knots
660 feet per second 391.039 knots
661 feet per second 391.632 knots
662 feet per second 392.224 knots
663 feet per second 392.817 knots
664 feet per second 393.409 knots
665 feet per second 394.002 knots
666 feet per second 394.594 knots
667 feet per second 395.187 knots