yo0123yo

05-24-2006, 11:26 PM

if u know the width, height and lenth of a box, how do you find the cu ft and tuning of it, thanks

View Full Version : formula to find box size

yo0123yo

05-24-2006, 11:26 PM

if u know the width, height and lenth of a box, how do you find the cu ft and tuning of it, thanks

bjfish11

05-24-2006, 11:27 PM

take the internal length x width x height and divide by 1728 to give you gross volume. Then you need to subtract port displacement. Which is basically the volume of the port.

Trey803

05-24-2006, 11:31 PM

What does dividing by 1728 count for? Ive heard to always do this but why??

bjfish11

05-24-2006, 11:32 PM

thats how many square inches there are in a cubic foot.

12" x12" x12" = 1728 cubic inches

12" x12" x12" = 1728 cubic inches

Trey803

05-24-2006, 11:34 PM

ahh stupid me!!

bjfish11

05-24-2006, 11:35 PM

o well, now you know!