36 in long, 12 in wide, 24 in tall
36 * 12 * 24 = 10368 cubic inches
1 gallon = 231 cubic inches
10368 /231 = 44.88312 gallons
so you have a 44.88 gallon tank
36 * 12 * 24 = 10368 cubic inches
1 gallon = 231 cubic inches
10368 /231 = 44.88312 gallons
so you have a 44.88 gallon tank