Conversion formula

The conversion factor from knots to feet per second is 1.6878098570997, which means that 1 knot is equal to 1.6878098570997 feet per second:

1 kt = 1.6878098570997 ft/s

To convert 690 knots into feet per second we have to multiply 690 by the conversion factor in order to get the velocity amount from knots to feet per second. We can also form a simple proportion to calculate the result:

1 kt → 1.6878098570997 ft/s

690 kt → V_(ft/s)

Solve the above proportion to obtain the velocity V in feet per second:

V_(ft/s) = 690 kt × 1.6878098570997 ft/s

V_(ft/s) = 1164.5888013988 ft/s

The final result is:

690 kt → 1164.5888013988 ft/s

We conclude that 690 knots is equivalent to 1164.5888013988 feet per second:

690 knots = 1164.5888013988 feet per second

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 foot per second is equal to 0.0008586721757919 × 690 knots.

Another way is saying that 690 knots is equal to 1 ÷ 0.0008586721757919 feet per second.

Approximate result

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

690 kt ≅ 1164.589 ft/s

An alternative is also that one foot per second is approximately zero point zero zero one times six hundred ninety knots.

Conversion table

knots to feet per second chart

For quick reference purposes, below is the conversion table you can use to convert from knots to feet per second