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 217 feet per second into knots we have to multiply 217 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

217 ft/s → V_(kt)

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

V_(kt) = 217 ft/s × 0.59248380129641 kt

V_(kt) = 128.56898488132 kt

The final result is:

217 ft/s → 128.56898488132 kt

We conclude that 217 feet per second is equivalent to 128.56898488132 knots:

217 feet per second = 128.56898488132 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0077779256087546 × 217 feet per second.

Another way is saying that 217 feet per second is equal to 1 ÷ 0.0077779256087546 knots.

Approximate result

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

217 ft/s ≅ 128.569 kt

An alternative is also that one knot is approximately zero point zero zero eight times two hundred seventeen 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