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 221.5 feet per second into knots we have to multiply 221.5 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

221.5 ft/s → V_(kt)

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

V_(kt) = 221.5 ft/s × 0.59248380129641 kt

V_(kt) = 131.23516198715 kt

The final result is:

221.5 ft/s → 131.23516198715 kt

We conclude that 221.5 feet per second is equivalent to 131.23516198715 knots:

221.5 feet per second = 131.23516198715 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0076199090613984 × 221.5 feet per second.

Another way is saying that 221.5 feet per second is equal to 1 ÷ 0.0076199090613984 knots.

Approximate result

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

221.5 ft/s ≅ 131.235 kt

An alternative is also that one knot is approximately zero point zero zero eight times two hundred twenty-one point five 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