Calculating the sise of my terrarium?

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Red-Eyed:
hey herp type people.
if i have a tank that is 2foot long, 1 foot front to back, and 18 inches tall, how many GALLONS does it hold? how do you calculate it? whats the formula as such??
cheers guys
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Chris McMartin:
[nq:1]hey herp type people.[/nq]
MATH type people. Emotion: smile Doesn't matter if there is a herp involved or not, in this case!
[nq:1]if i have a tank that is 2foot long, 1 foot front to back, and 18 inches tall, how many GALLONS does it hold? how do you calculate it? whats the formula as such??[/nq]
I'll walk you through it it's not terribly difficult, as long as you know how to attack the problem in the first place.
1. Volume = length x width x height- It's important to keep your units of measure consistent! - One foot = 12 inches
- 24 inches long x 12 inches wide x 18 inches tall = 5184 cubic inches
2. Conversion of one measure of volume to another- 1 gallon = 231 cubic inches
- Set up a simple ratio (hopefully this will be formatted correctly on your screen):

231 cubic inches 5184 cubic inches =

1 gallon ? gallons

- The cross-products must be equal; in other words, 5184 x 1 = 231 x ? - To solve for the "?," divide both sides by 231; in other words, 5184/231 = ?
- The result is 22.44 gallons.
3. The internet is your friend! As long as you determine the volume incubic inches for your terrarium (which we did in step 1), - http://www.ilpi.com/msds/ref/volumeunits.html ; select "cubic inches" on the left-hand side, and "gallons" on the right.
- 5184 cubic inches = 22.44 gallons
Chris

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Red-Eyed:
ok then man, thats real cool. work out your cubic inches, then divide by 231 as theres 231 cubic inches in one gallon. so now say i wanna go the other way in that, say i want to biuld a glass terrarium that is 10 gallons... how do i work out the minimum dimensions that i can use? cheers man (i thought u could multiply 10 by 231 to give cubic inches in 10 gallons and then square root it but this gives right weird answers)
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Chris McMartin:
[nq:1]ok then man, thats real cool. work out your cubic inches, then divide by 231 as theres 231 cubic inches ... by 231 to give cubic inches in 10 gallons and then square root it but this gives right weird answers)[/nq]
You would want the CUBE root, not the square root. Alternatively, take 2310 (the cubic inches) and divide by one of the dimensions you want your enclosure to be let's say 24 inches wide. That leaves 96.25 which you'll have to divvy up between depth and height. So if you have an enclosure you want 24 inches wide, and decide to make it 12 inches deep/long, it will need to be roughly 8 inches tall.
I'm not sure why you would want to limit your design based on volume; it's usually more efficient to design the enclosure to fit into a given space in your home. It's a bad feeling when you design the cage of your dreams, then find out you made it too big to fit where you originally intended!

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Red-Eyed:
thats exactly why im asking you mate. so i can biulkd somthin ral minimal to fit into the real small shared house. i want red-eyed tree frog and apparently they only need a 10 gallon tank. but co they are arboreal im gonna make da tank a lot taller than it is wide.
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Chris McMartin:
[nq:1]thats exactly why im asking you mate. so i can biulkd somthin ral minimal to fit into the real small ... 10 gallon tank. but co they are arboreal im gonna make da tank a lot taller than it is wide.[/nq]
Generally, you would not want to make something as SMALL as possible, but as LARGE as possible given your external constraints (wife says "no bigger than
3 feet across," you have a 2x2 ft space between a couch and a floor lamp,etc). Consider you wouldn't want to live in a minimalist prison cell if it were possible to at least have a 3-bedroom apartment...

Find out how BIG you can make it before your roommates complain about it being too large. You can sell it to them as being an attractive piece of decor for the room, setting it up all nice with a naturalistic look and making the outside look furniture-quality. If it turns out to be 15 gallons vs. 10, that's a bonus for your frog(s). Just because a care sheet lists the "minimum" requirement doesn't mean that's the most you want to give the animal. Plus, that "minimum" requirement is just a guideline I doubt experiments have been done to determine that requirement (breeding success vs. tank size, for example) since it is fairly subjective and but one of many controllable variables in the captive environment.

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