View Full Version : how many gallons is this?
timdam
03/23/2010, 12:38 PM
i know there is some gallon calculator out there. but i don't know where it is.
can someone tell me how many gallons a tank would be if it's 24x24x20?
Rascalson
03/23/2010, 12:42 PM
Give a man a fish...etc
http://www.reefcentral.com/index.php/tank-volume
timdam
03/23/2010, 01:02 PM
thanks. that was easy to do.
Rascalson
03/23/2010, 01:12 PM
It has calculators for many different shapes.
http://www.theaquatools.com/
Mods my apologies in advance if this link is not ok, please delete if not ok
Dun Properly
03/23/2010, 01:31 PM
If you want to actually know what the calculator is doing (ignore this if it is too nerdy):
Step 1: Find the volume in cubic inches...
24" x 24" x 20" = 11520 in^3 (cubic inches)
Step 2: Convert volume from cubic inches to cubic feet...
There are 1728 cubic inches in 1 cubic foot, so
11520 divided by 1728 equals 6.67 cubic feet.
Step 3: Convert volume from cubic feet to gallons...
There are 7.48 gallons in a cubic foot, so
6.67 multiplied by 7.48 equals 49.9 gallons.
RocketEngineer
03/23/2010, 01:47 PM
Dun Properly, Actually, there are 231 cubic inches in one gallon so you can skip step 2.
SO: All measurements in inches:
L*W*H/231 = Gallons.
RocketEngineer
Dun Properly
03/23/2010, 02:46 PM
Dun Properly, Actually, there are 231 cubic inches in one gallon so you can skip step 2.
SO: All measurements in inches:
L*W*H/231 = Gallons.
RocketEngineer
Yeah, but that is just how my brain computes it. I think of things in cubic feet and go from there. Your way is certainly quicker and easier.
Matt K
03/23/2010, 05:58 PM
Length X widthX height divided by 231 in inches
dadowd
03/24/2010, 09:33 AM
I like the one Rascalsom provided.
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