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 1221 feet per second into knots we have to multiply 1221 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

1221 ft/s → V_(kt)

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

V_(kt) = 1221 ft/s × 0.59248380129641 kt

V_(kt) = 723.42272138291 kt

The final result is:

1221 ft/s → 723.42272138291 kt

We conclude that 1221 feet per second is equivalent to 723.42272138291 knots:

1221 feet per second = 723.42272138291 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0013823176552823 × 1221 feet per second.

Another way is saying that 1221 feet per second is equal to 1 ÷ 0.0013823176552823 knots.

Approximate result

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

1221 ft/s ≅ 723.423 kt

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