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 721 feet per second into knots we have to multiply 721 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

721 ft/s → V_(kt)

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

V_(kt) = 721 ft/s × 0.59248380129641 kt

V_(kt) = 427.18082073471 kt

The final result is:

721 ft/s → 427.18082073471 kt

We conclude that 721 feet per second is equivalent to 427.18082073471 knots:

721 feet per second = 427.18082073471 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0023409290667125 × 721 feet per second.

Another way is saying that 721 feet per second is equal to 1 ÷ 0.0023409290667125 knots.

Approximate result

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

721 ft/s ≅ 427.181 kt

An alternative is also that one knot is approximately zero point zero zero two times seven 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