volume question

[martins]

can anyone provide me with formula, with who I can calculate the volume (capacity) of my panoramic aquarium? (front glass ir round)

 

[RogerMcAllen]

231 cubic inches in a gallon

Pretend like there is no bow and get a volume for the rectangle. Then do some shady math and say that the bow is a half circle. Take 1.57*(lenght of the face)^2 to get the curved part. Add the two volumes, and convert to gallons. That should at least give you a decent upper bound.