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Unit Converter

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 646.4 feet per second into knots we have to multiply 646.4 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

646.4 ft/s → V(kt)

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

V(kt) = 646.4 ft/s × 0.59248380129641 kt

V(kt) = 382.981529158 kt

The final result is:

646.4 ft/s → 382.981529158 kt

We conclude that 646.4 feet per second is equivalent to 382.981529158 knots:

646.4 feet per second = 382.981529158 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0026110919818993 × 646.4 feet per second.

Another way is saying that 646.4 feet per second is equal to 1 ÷ 0.0026110919818993 knots.

Approximate result

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

646.4 ft/s ≅ 382.982 kt

An alternative is also that one knot is approximately zero point zero zero three times six hundred forty-six point four 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)
647.4 feet per second 383.574 knots
648.4 feet per second 384.166 knots
649.4 feet per second 384.759 knots
650.4 feet per second 385.351 knots
651.4 feet per second 385.944 knots
652.4 feet per second 386.536 knots
653.4 feet per second 387.129 knots
654.4 feet per second 387.721 knots
655.4 feet per second 388.314 knots
656.4 feet per second 388.906 knots