How to tell how many gallons a fish tank is.
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- čas přidán 9. 11. 2016
- (Length X width X height, divided by 231) is the formula to tell how many gallons a square or rectangular aquarium is. This won't work on aquariums with curved glass or curved acrylic.
Thx helped a lot, just figured out my "10 gallon" tank is actually five...
Good I’m glad I could help! Thanks for watching
😂
Thanks for the vid...you're dividing the product of your total dimensions by 231 because 1 gal of water = 231 cubic inches. You're right though, it does work!
David Sullivan good to know man thanks for the info. Now I know haha
lol, thanks, because i was wondering
If you're a Teenager the easiest way to do it is to get a 1 gallon bottle pour until it gets full :D
NewNight thanks!! We have an old fish tank and I’m trying to figure out if it’s a 5 or a 10 gallon
You Know there is such a thing called a ruler and a calculator: D
The Hobbiest pshhh then we have to actually math 🤦🏽♀️ duh 😂
Or just do basic math 😂
@@jj.h1388 its basic 5th and 6th grade math...your just an idioit
Thank you very much. Just found out that my fish tank is 6.5 gallon. Perfect for a betta fish.
Gentaky awesome! I'm glad I could help. Good luck with your betta
hows the betta fish going?
Thank you kind sir. Finding out what gallon your tank was a fuss I couldnt manage
This is awesome considering I'm getting a bigger tank today. Going from a 10gal to 30gal, thank you!🐠🥰
Your welcome, thank you for watching!
THANK YOU so much! I was told is was thought to be just over 25 from the seller. But it's a 55 gallon. Talk about a nice surprise! I bought two more koi. :)
That’s awesome! What a deal! Lol I’m glad I could help. Have a great day!
I just got a 8x2x2 240 gl tank that I will keep about 3/4 full for my turtle. I'm using tap water so I needed to know exactly how much conditioner to add to the water. You helped big time! Thank you
the talisman your welcome I'm glad I could help. Good luck with the turtle!!!
I know this is like a year old, but anyone setting up a new semi-acuatic turtle tank, turtles absolutely love swimming, and no matter how big the turtle is they are naturally strong swimmers. Do not be afraid to fill your tank as high as possible leaving just enough room for a basking area or two. Res, painteds, and other basking turtles will spend upto 85% of their time in water. Dont be afraid of them drowning. They won't. The more swimming area they have the more exercise and mental stimulation they get. I have raised multiple juvenile turtles of many species up to maturity and this is one of the biggest misconceptions I hear in the hobby.
If you calculate in feet, say a 1'x1'x2' tank, then you take the product of the three numbers(cubic feet, in this case 2 cubic feet) and multiply by liquid volume per cubic feet.
There are 7.48 US gallons per 1 cubic foot.
G(gallons) = V(cu.feet) x 7.48(7.48g/cu.foot)
so in a 1x1x2 foot tank there are 14.96 gallons.
Your inch formula works! but make sure you convert to inches for it!
Otherwise, use the cubic foot method! It is the scientific way!
Fish
Ocean
This simple video and simple instructions very much effective be happy you got a new sub
Well thank you! I appreciate that. 👍
Thanks man that was very useful!
No problem, glad I could help!
wow... what a hack! I feel like I just violated a law while I calculated fish tanks on shopping websites.. it's like finding out something they don't want us to know hahaha. Thank you, sir!
Haha that’s awesome! I’m glad I could help violate a law lol. Thanks for watching!
231 is the number of cubic inches in a gallon. So you divide against the area in between essentially, if that makes sense.
Thank you for explaining the difference in size of fish tanks...😎
This was so informative, thank you for sharing
Absolutely, my pleasure! Thanks for watching and commenting
Thank you, 7 years later.Still need the info
Thank you for posting this video
Latear85 you are very welcome, glad I could help.
this is awesome thanks.
Thank you for this great info.
You are very welcome! Thanks for watching
Perfect, thanks man!
Absolutely! Glad I could help
great tip!
tiffany thanks for watching I hope this helped
Thanks for this!
No problem! Glad I could help!
Thank u so much
to this day still useful
Thank you so much now i figure out that my tank is 80 gallons
@all about diy how many gallons is this 36 long 12 wide 20 tall
WOW! You dont even need a calculator to find out your tanks water capacity! You must have some dman good mental math skillz!
Scalare Man haha yeah mad skills. Thanks for watching my stuff man, I appreciate that.
Nice thanks bro
thank you sir XD
Wonderful
would a 30 gallon tank be okay for a black moor and a fancy goldfish?
How many gallons of water carried in 3ft tank
thanks
One subscribed for me..very usefull video, thanks much
🤦♀️ all this time I thought I had a 15 gallon. With your formula just found out I have a 10 gallon. Thanks for this video. 🙂
Well I was hoping you were going to say you found you have a 20 gallon but oh well. Now you know. Thanks for watching!
This may sound stupid but do you measure the length and with and height from the bottom and top black trimmings? Or from glass to glass (not measuring the black trimmings)?
I measure from the plastic trim when it comes to the height. Length and width I measure the glass. It’s not 100% accurate but it’s really close.
That small tank is a 5.5 gal. I know because my 5.5 gal has those same measurements.
Ay up Keem didn't know u were in to fish keeping.
Keemstar really be into them fish 😳
Thanks 👌
great mines a 6 gallon now time to tell my mom to buy a bigger one
That’s what I’m here for! Getting people to convince their moms to get bigger tanks!! Haha good luck and thanks for watching.
All About DIY yea i have my gallon for my hermit crab but i just finished watching a vid bout them and i need different ground in it but my mom is always working:(
Thx
I have an old tank that I want to fix so I want to find out how many gallons it is
If my tank is 60cm by 60cm by 60 cm , whats the gallon size?
How about cylindrical shape?
What if the width is the side why is he majoring the screen for width?
How much length big tank ?
Use the metric system: 1 cubic decimeter holds 1 liter of water. Length x width x height remove 3 ceros and that’s the liters. A 100 x 20 x 30 cm tank can hold 60, and since the average density of water is 1, then 60 liters are roughly gonna weight 60 kilos.
I agree that the metric system is much easier and makes a lot more sense. I suppose this video is for my American audience. Thanks for the metric equivalent 👍
@@allaboutdiy1375 I find it easier to do the math in metric and then convert to imperial. Might not work for everyone but it’s a fun alternative
yes but i want mine half ful.and the substrate and rock and wood is going to change that.but thats good info.thanks
My tank is 2 feet (2 feet x 1 feet x 1.5 feet) ? I always find my water cloudy, i'm using internal powerhead filter currently. Is this top filter is good my my size tank? If yes, which top filter do you recommend for me? Please suggest. Urgent. Thanks in advance!
That’s a loaded question really. My advice would be, get rid of the internal power head filter and go with an aqua clear 30 hang on the back filter. It will move and filter a lot more water. Next I would change 50% of the water and gravel vacuum the entire tank. Clean the glass and see where that takes you. Keep changing the water every few days after that and don’t over feed.
Thank you so much! I thought I had a 20-gallon it's a 10
How does it work with a bow tank the tank is 20 x 13 w at the front of the bow to the back if the rank and 18" high.? Tia
This formula doesn’t work exactly for bow front tanks. Because of the curve of course. But if you take those dimensions(20x18x13, divided by 231) you get about 20 gallons. Then you can probably add about 1 maybe 2 gallons to account for the curve. So you have roughly a 21 gallon bow front tank. Give or take.
Thank you 😊
Anita Peitz your welcome! Glad I could help. I just saw that it’s 13 inches at the front of the bow and then curves back to 12 inches at the corners. So your tank is probably considered a 20 gallon bow front tank. Have a nice day!
You can use this website's calculator.
www.fishtanksandponds.co.uk/calculators/bowfrontvolcalc.html
Is the tank half full or half empty?
I would say it's half full because you can't have to much empty
Hi. I have a problem. My fish tank is square 24 inches all sizes & 13 inches height but i did your formula & comes out 5.40259740259. So what does that means??? Or is it 54 gallons of water??? Please help😭😭😭
24, times 24, times 13, divided by 231 comes out to 32.4 so Your tank is 32.4 gallons. The formula is length times width times height divided by 231. That will equal your volume in gallons.
@@allaboutdiy1375 Thank you so very MUCH!!!👍👍👍
Tania Rodriguez you are so very welcome!
well how many is it 1.8*0.10*2.4 divide by 231
Can you give me some of your collections? HAHA LOL.
Oh i think i was working it out wrong so my tank is 60 cm by 60cm by 60 cm ( 2 foot cube tank) i do 24 inches x24 inches x24 inches divided by 231 equals 60 gallon correct ?
Yes that’s perfect. You might be the first one to get it right lol. Thanks for watching
Thanks bro
No problem, glad I could help!
Can you tell me what i'm doing wrong? My tank is 36 × 17 × 15 I'm getting 39 gal by your method. But the first one you measured is only 27 Gal. How is mine so many more gallons than yours when mine is only 5 inches wider??
@@kimb7970 I’m getting 39.74 gallons by your measurements. I can’t imagine how 5 inches wider is 9 gallons more. Measure again maybe. Seems like 5 more inches should only be about 3 gallons
I have an 30 gallon tank... my question.. maximum how many fish(2 inch size ) can add on this aquarium
It depends on what kind of fish you are planning on putting in there.
All About DIY
Baby goldfish
Mollyfish
Baby tiger shark
Baby Angel fish
Koi carp
Baby gourami
Tetras
My tank is 2 feet wide x 16 inch tall x 1 feet wide divide that by 231 I got 0.138528138. Is this correct
Muhammad Urzam you have to do everything in inches. So it’s 24” x 16” x 12” divided by 231, which comes out to: 19.948 gallons. Or basically a 20 gallon “tall” or “show” aquarium.
My tank Length 48inches * breath 24 inches * height 24inches. What would be the tank capacity in liters ?.
Do it in gallons and convert it to liters. If you can watch this video you have the tools to figure it out. Don’t be lazy. It took me less than a minute to figure out.
found out my 55 is actually a 160 thanks
Your height should be measured to where your fill level will be.
Cal
I thought my tank was 29 gallons but its 32
🙏🏼I suck at Math. Thank you.
can somebody help me I did the calculation 48x21x19divided by 231=82 does that mean its 82 gallons or liters
That actually is a 72. And it is gallons since there are 231 inches cubed in 1 gallon of water. So your tank is 72 gallons
Used this to determine my tank size-36x20x16 = 50 Gal
That’s great, I’m glad this helped you! Thanks for watching and commenting.
36x18x24 inch my fish tank what gallon water in fish tank
luckey raja 67.3
Yunus Mehasi you would have to convert cm to inches and then use the formula. Handle it bro
Do how much was the big one
Forget about the tank, no homo.but that's a good looking man there 🤣🤣
Hahahahaha thank you kind sir!
How will we measure the volume of a fish bowl?
Formula?
This is a video about measuring the volume of a standard dimension rectangular aquarium, not a mathematics class on finding the volume of any dimensional item. If it’s a fish bowl there is really no need to know the exact volume. It’s small.
@@allaboutdiy1375 ok thanks
I got a 6.5 gallons tank approx... Can u tell me what kind of fishes can I place??
Shahraiz Khan there aren't many options for that small tank. Ask the pet store when you are ready to get fish. Probably betta, guppies or other small fish like that.
Shahraiz Khan comet goldfish are great, guppy are great and Molly's fish are a save bet to. I also have Crayfish and plecos, and they are really fun they can go in your tank.
@@allaboutdiy1375 and how many should be in it ?
You totally didn't do all of that math in your head, but you sure sounded like it in the video!
Brian Vu haha yeah I did all the math before hand. Otherwise my CZcams name would be rain man! Thanks for commenting.
I can’t figure rn because the tank is at my dads house but all I got to see is that it said a 10 size aquarium tank. I want to know how many gallons it is
Well you need all three dimensions in order to figure out what size it is. Otherwise it’s just a guess. Go to your dad’s with a measuring tape and go from there.
All About DIY yeah ima go Thursday and see how big it is
Great video btw !
Just did this and I got roughly 46 gallons, but I can’t seem to find a tank online with that specific size ?
Most of the time tank companies round up or down to the nearest 5 gallons. Your tank is probably considered a 50 gallon
@@allaboutdiy1375 got it, thanks !
@@javierandres5299 no problem 👍
i got 12 height 12 width 24 breadth what gallon is it
Sarthak pasalkar I put the formula in this video so people could figure it out for themselves. So...... figure it out. HxWxB divided by 231.
SP Arts why don't you just divide them by 231, but I will do the work for you, it's a bout 15 gallons
Don't get it myn is 70x30x50 how much is that?
I made this video to show YOU how to do it. Not to do it for you. This equation is in inches not centimeters. Convert it and use your 2 brain cells and figure it out.
@@allaboutdiy1375 well fuck you
231
231 is a gallon of water converted to cubic inches
my tank is 30'x15'22 what galoon?
Prince Aries get a calculator
No shit - did you not pay attention to the video, smh.
I just did that with my 3 1/2 gallon tank and the numbers says it's 6 gallons. I have that small tank that you are showing. It only holds 3 1/2 gallon.
Well either you did the math wrong or you have a 6 gallon tank.
@@allaboutdiy1375 well the 3 1/2 gallons of water tell me it's only 3 1/2 gallons. Lol crazy business!
@@idk-iq8zn well then it’s 3 1/2 and you did the math wrong. The formula works.
The math says it's a six gallon tank because it's the same size as the one in your video. It sold at the pet store as a 5 1/2 gallon originally. It only holds the 3 1/3 any way thanks for replying. 🤗
Do you how will this work on a hexagon tank?
Mr. H. Nope this formula only works on square or rectangle tanks.
All About DIY.... Hmmmm, wonder the formula for the Hexagon tank?
Mr. H. I got one to and I'm wondering
Oh you could also empty it out and get a one gallon milk jug fill it with water and pore it into the tank and count how many gallons.
#justsayen
@@mr.h.3535 calculate the area of the hexagon (very easy if each side is the same lenght (you just put the entire sum into wolframalpha like litterally enter "hexagon sides X inch") do that * the height and you got it in inch³ so you would have to devide it by 231 (there are 231inch³ in a gal so that is why) and you got the amount of gal of your tank
My tank is 150 gallons
Its huuuuuugeeee
😐 I thought I bought a 75 gallon fish tank unless I’m wrong? It measures
36 inches long
19 inches wide
20 inches tall
Any help?
Star Lord hopefully you didn’t pay the 75 gallon price because that’s a 60 gallon tank
All About DIY I had a funny feeling it wasn’t a 75g smh but I bought it for 120$ with a canister filter an power head an lights
All About DIY hope I won at least
An thanks for the respond
my tank is 5 inches in height ,3 inches wide and 3 inches in the sides wide how many gallons my aquarium is
Nirmal Debnath get a calculator and figure it out
All About DIY lol
Thats not a fish tank sir, thats a water bottle 🤣
Babe On Board 😂😂😂 seriously. Who cares what size it is you can’t put fish in it anyways...
I Know he!he!
Its just a joke
I got 7 gallons
Wouldn't that be 27.8
I know this video is old but my goldfish lived for 3 years and the small ones I got lived about 6 months and the rest were 3 years some of them died :( but is that good enough?
Well I’m not a goldfish expert but the life span of a goldfish depends on the species and the conditions they are kept in. So to answer your question, I’m not sure if that’s good or not.
All About DIY should I post a video to see how they are doing and post it on my channel for u to see?
All About DIY should I?
All About DIY ???
All About DIY ?? Should I :/
Looks like a ten gallon and a 30 gallon tank
Looks like a 5.5 and a 20 long or 40
My fish tank is 30in length 12in width and 11in height can you please tell me the gallons my tank I keep messing up with the calculator....
SilentLyfe it's 17 gallons roughly
All About DIY thank you
SilentLyfe your welcome
That looks like a Lefty's Tape Measure. My man! Sinistrality is hard some times.
Dang the tank i just got has a round front. Looks like this is gonna take a while.
The Real J.R. Jr nah, you can get within a gallon or 2 with this formula. Just pretend it’s a rectangle and add a couple gallons to the total to compensate for the slight curve of the front. There’s usually no need to know the “exact” capacity anyways. Good luck tho lol
@@allaboutdiy1375 Oh thank you! And yeah how'd you know it's one of this with a slight curve in the front 😂. But thank you I need to clean it in an hour. I plan on using vinegar (idk i looled it up, feel free to guve tips on cleaning it too 😂) Do you have any pump recommendations? I'm guessing it's 37 to 40 gallons. Haven't measured it yet.
The Real J.R. Jr use Bar Keepers Friend to clean it. I have an old video about how to use it if you want. I also have a new video about how I clean my 400 gallon tank too if your interested. Let me know what you think. If you have any other questions let me know. Good luck
All About DIY I cleaned it already. It’s clean but I need to make a lid for it. And I was wondering what filter/pump you would recommend?
The Real J.R. How many gallons is your tank and what type of filter are you planning on using I.e. sponge? Hang on the back? Canister etc.?
All about diy do you have Instagram
Yes but it doesn’t have anything to do with my CZcams channel. Sorry
I tried this my tank is like 22.4729648263 gallons- wth
Yeah, round up. Roughly 22.5 gallons. What’s the big deal.
From how long I’ve been in the fish hobby I have so many tanks I could already tell that’s a 10 gallon tall and a 20gallon long
mh4u vlogsd d dubreuil it’s a 6 gallon and a 27 gallon man, might want to stick to the formula. Plus this wasn’t a video for me. I also can tell about how many gallons a tank is by looking at it. Thanks for watching...
All About DIY Lmaooo 😂😂😂😂😂
I found using dividing it by 241 work better me. 75 gallon. (18x48)x21=75.3
U divide by 231 because there is 231 cubic inches in a gallon
I find out my 20 gallon tank is 18 gallon
mine is 49 gallons i think, this was my math answer ( 4.98701298701 )
SpicyGaming12 you did something wrong. What are the dimensions in inches and I’ll tell you.
@@allaboutdiy1375 Length- 24 Width-12 Hight- 4.5
SpicyGaming12 it’s 5.6 gallons. That’s a weird tank lol. It’s basically a 10 gallon sawed in half length wise. Never seen one like that
@@allaboutdiy1375 sorry it is 24 12 5
Was told when buying my tank it was 10 gallons but after doing this it says it's a 15 gallon
hammy sweet, more room haha. Good luck and thanks for watching