A:AnswerHi Silver, Thank you for taking the time to contact us with your enquiry.. Unfortunately, the lid on the hot coal bin is not air tight so I would suggest that you find something else to keep your cat food dry. Warm Regards.
A:AnswerV=πr^2h = π·5.52·12.4≈1178.4114
Volume is about 11788 inches not a perfect cylinder though
1178 inches comes to about 5 gallons
(1178/231=5.099)