aluminum box sizes?

[SD2006]

Hello experts,

I don’t know if I post this in the correct forum. I have a question on how to measure the real size area (W*L) for disposable aluminum food containers. As many of you knows that this kind of boxes have a wrinkle wall and sizes of “Top out-Top in- Base- Height- Capacity”
Is there a formula or data sheet can help me to calculate the original size of these boxes?
Thank you.