Help decode a Sears/ Whirlpool fridge

[eljefino]

Wife wants a "bigger" fridge but I'd like to find the specs of what we have now, in cubic feet. Coming up empty. Here's the sticker, any clues?

External size 31" deep (including doors), 33 across, 66 5/8 tall including hinges.

 

[supton]

33 cubic feet on the outside. I'd wager 2 gets lost for the compressor? The walls are what 3" thick? another 5 or so? So my guess is 25 cubic feet, plus/minus a lot.

Probably be wrong. First link I found at Home Depot (link) shows similar size but only 19 cubic feet. But's for the garage, so maybe one for the house would be different.