Need Help Calculating Volume

Discussion in 'Tank Talk' started by Ocho, Sep 28, 2004.

  1. Ocho

    Ocho Cuttlefish Registered

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    I have a tank and I am not exactly sure on its capacity. Now I know how to
    calculate the volume of simple objects, but this isn't the average rectangluar
    aquarium. If you have a look at the pic, you see what I mean. I need to know
    the the volume in (US)Gallons so I can be sure this would be suitable for a bimac
    and so I can get the corrisponding equipment. :arrow:
    [​IMG]

    Any info or ideas on how to do this would be appreciated.
    :grad: Also if you know the answer please explain because
    I am curious to know how it is done. Thanks!
     
  2. joel_ang

    joel_ang Architeuthis Registered

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    If i did it right it should be 60.668L or 16.05 US gal
     
  3. cthulhu77

    cthulhu77 Titanites Supporter

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    the way to work with these tanks, is to approach it geometrically (ah, those classes!):
    first, treat the tank as if it is was a square:
    26.5 x26.5x18 inches= 55 gallons
    next, treat the triangled area the same:
    26.5-7.5= 19, so : 19x19x18=28 gallons
    subtract 28 from 55 = 22 gallons.
    half of the 28 gallons then is added back in: 22 =14 =36 gallons !
    This tank is usually sold as a 36 corner...perhaps a little small for a bimac...55's are easier to work with...but good luck!
    greg

    p.s. sorry for all the edits...figured it first in UK gallons... :|
     
  4. Ocho

    Ocho Cuttlefish Registered

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    I think I have found a way to figure it out-
    I divided it into 3 sections: A,B, and C

    [​IMG]

    Then I calculated the volume of each individual section... and came up with this:

    A- 19” x 7.5” x 18” = 2565 in3
    B- 26” x 7.5” x 18” = 3577.5 in3
    C- 19” x 19” x 18” = 6498 in3 x 0.5 = 3249 in3

    2565.0
    3577.5
    + 3249.0
    9391.5 in3


    9391.5 cubic inch = 40.6558442 Gallon (US)

    Can anyone second this?

    P.s. Thanks for your replies!
     
  5. Colin

    Colin Colossal Squid Supporter

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    just let me throw a spanner in the works too :)

    You need to take between 10 and 15% off the total for two reasons...

    1) a tank is never filled to the very top
    2) adding gravel etc displaces water...

    so a 40 gal may be 34 gals (US)

    cheers
     
  6. joel_ang

    joel_ang Architeuthis Registered

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    Sorry bout the first one, it was way off due to some error, I re-did it and i got roughly 150 litres which works out to be 40 gal. :oops:
     
  7. Colin

    Colin Colossal Squid Supporter

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    I make it 40.5 Imp gals - 10% = 36 imp gals

    :)
     
  8. Nancy

    Nancy Titanites Staff Member Moderator

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    As I recall, the US gallon is slighty larger, but I don't know the conversion factor.

    Nancy
     
  9. Colin

    Colin Colossal Squid Supporter

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    its the other way round nancy... An imp is bigger...

    According to a bucket of tropic marin... it's big enough for 200 us gals or 165 imp gals (25kg bucket)
     
  10. oscar

    oscar Vampyroteuthis Registered

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    there are many good conversion calculators on the internet... type conversion, calculator and the measurements (eg. gallons imperial us litres etc) into google and you should get good results
     
  11. Jean

    Jean Colossal Squid Supporter

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    FYI

    10 US gallons is roughly 37.9 L!!!!!! We've been sterilising tanks and I've been working out concentrations of Sodium Thiosulphate for neutralising and the quatity is given per 10US gal!!!

    J
     
  12. Ocho

    Ocho Cuttlefish Registered

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    Yeah I don't know the formula for converting Cubic Inches into (US)
    Gallons- :lol: I get all of my conversions from this handy site:

    http://www.onlineconversion.com/

    "Convert just about anything to anything else."

    :arrow: Check it out!
    It has been really helpful to me,
    and I'm sure it could help some of you too!

    Thanks!
     

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