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 687.9 knots into feet per second we have to multiply 687.9 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

687.9 kt → V_(ft/s)

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

V_(ft/s) = 687.9 kt × 1.6878098570997 ft/s

V_(ft/s) = 1161.0444006989 ft/s

The final result is:

687.9 kt → 1161.0444006989 ft/s

We conclude that 687.9 knots is equivalent to 1161.0444006989 feet per second:

687.9 knots = 1161.0444006989 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 0.00086129350384708 × 687.9 knots.

Another way is saying that 687.9 knots is equal to 1 ÷ 0.00086129350384708 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 eighty-seven point nine knots is approximately one thousand one hundred sixty-one point zero four four feet per second:

687.9 kt ≅ 1161.044 ft/s

An alternative is also that one foot per second is approximately zero point zero zero one times six hundred eighty-seven point nine 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