For Feet, Formula = L x W x H x 7.5
Covert to feet dimensions
72" = 6'
30" = 2.5'
24" =2'
So plug them into the formula
6' x 2.5' x 2' x 7.5
225
So the aquarium is 225 Gallons!
About 220 gallons of water, filled to the very top.
Here is my take: 1 gallon of water equals 231 cubic inches 1 square foot, 1 inch tall equals 144 cubic inches (12"x12"X1") 1 square foot needs 0.624 gallons to equal 1 inch of cover (144 cubic inched divided by 231 cubic inches) 16 square feet would require 9.975 gallons of water to be covered 1 inch deep. (16*0.624) **Runsky**
40 square feet is 5760 square inches. 5760 square inches times 0.1 inch equals 576 cubic inches. Since there are 277.4196 cubic inches in a (US) gallon, 576 cubic inches is about 2.49 gallons.
If 24 inches is the diameter, there are 141,004 gallons of water. If 24 inches is the radius, there are 564,018 gallons of water.
1 sq ft = 144 sq inches 1 sq ft x 1 inch deep = 144 cubic inches / (231 cubic inches per gallon) = 0.6234 gallon (rounded)
An international acre is 4840 square yards or 6,212,640 square inches.An imperial gallon is 277.14 cubic inches.6,212,640 divided by 277.14 = 22,610 gallons approximately.A US liquid gallon is 231 cu inches hence 1 acre inch = 27,154.3 US gallons (rounded)
One gallon of water equates to 231 cubic inches.There are 231 cubic inches in one gallon of water.
Inches of water x 0.03613 equals pounds per square inch (psi).
225
21.76 US gallons of water.
Square inches is an area, not a volume. You can't convert square inches to gallons. If you meant CUBIC inches, then 682 cu in is 2.95 US Liquid gallons or 2.53 US Dry Gallons.
Volume = (area) x (depth) = (1,800 x 144) x 1 = 259,200 cubic inches = 1,122.078 gallons (rounded)
12" x 12" x 1"= 144 cubic inches, which is equal to .623 gallons therefore a one thousand square foot roof receiving one inch of rain will catch 623 gallons.