fish tank

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fish tank

Postby harry » Fri Feb 06, 2004 2:07 am

i have a tank that is 48 inches by 18 inches by 18 inches deep, how many gallons of water will it hold

Postby shill » Fri Feb 06, 2004 10:51 am

If your tank is 121.9 cm X 45.72 cm X 45.72 cm (imperial measurement is evil), that means it is 254809.81296 cc, which is 67.31 gal.
Posts: 91
Joined: Fri Feb 06, 2004 8:22 am

Great Question - I need to go further - Weight

Postby Dave » Sat Mar 13, 2004 10:54 pm


Excellent question since I am in the process of starting a fish tank too. I went online - searched for starting a fish tank. Got all kinds of helpful info. One of the best was a simple fish tank volume calc <-- hope okay to post

Anyway, I calculated a max of 40 gallons of water. Great, now owning a 24 ft above ground pool, I know there is some weight associated with water. How heavy will this 40 gallons of water be on the "wood and glass" table I planned to rest it on?

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Joined: Sat Mar 13, 2004 10:39 pm

Postby shill » Sun Mar 14, 2004 5:01 am

If I understood your question correctly:
40 gal = 151.416472 l
151.416472 l = 151.416472 kg
151.416472 kg = 333.816179 lb
40 gal = approx. 333.8 lb
Note: this assumes US gallons.
Posts: 91
Joined: Fri Feb 06, 2004 8:22 am


Postby breast » Sat Oct 15, 2005 8:15 pm

could sum1 put there fish tank up my ass .................. hard! !!!!!!!!!!! plz ive got lube ready an im wankin over my fish now!!!!!!!!!!!!!!!!!!!!!!!

Re: fish tank

Postby Ken Chevy » Sat Oct 15, 2005 10:04 pm

harry wrote:i have a tank that is 48 inches by 18 inches by 18 inches deep, how many gallons of water will it hold

Length x Width x Depth ÷ 231 = Gallons x 8.325625000001 Lbs per US Gallon = Weight of water

48 x 18 x 18 ÷ 231 = 67.324675324675 Gallons x 8.325625000001 Lbs per US Gallon = 560.520000000036 Lbs.

40 US Gallons = 333.025000000021 Lbs.

shill: It appears you were using the factor for pure water @ 4°C? A fish tank would probably be closer to 20°C, thus the difference in numbers/answers.
Ken Chevy
Posts: 57
Joined: Mon Sep 26, 2005 11:22 am
Location: Salem, OR, USA

Postby Guest » Tue Nov 15, 2005 8:25 am

Wow you guys are great,

Thank you for this info

My Live reef aquarium size
Length (9feet) or (105"); Width (2.5 feet) or (30") Depth (2.5) or (30")

420 Gallons and weights 3496lbs Woot!

Again ty!

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