Standard Aquarium Sizes and Dimensions

Are you a fish lover or you have a store of fishes where you sell them as a pet? Then you are in the right place. If you want any fish as a pet or you love keeping fishes then you must need an aquarium.

An aquarium is an enclosed water-filled area of any size, having at least one side transparent in which aquatic plants and animals are kept and displayed.

It looks very nice and cool in houses. Fishes swimming in an aquarium from one corner to another corner looks so fascinating.

Fish-keepers also use an aquarium to keep amphibians, Invertebrates, fish, aquatic reptiles such as turtles and aquatic plants.

There are small as well as big aquariums. Small aquariums are kept at houses whereas large aquariums are kept at public places. A large aquarium is kind of a tank filled with water in which large animals like dolphins are turtles are kept.

Public aquariums are present in buildings. Building your own tank is an interesting and money-saving activity. It needs some important tools and a good sheet of plastic or glass. The other things depend upon your imagination.

Calculating Aquarium Size

Calculating the size of a tank for yourself is actually quite easy – once you have the formula. To calculate the size of an aquarium in US Gallons, use this formula:

US Gallons = (Length * Width * Height) / 231

To calculate the size of an aquarium inĀ Imperial Gallons, use the formula below:

Imperial Gallons = (Length * Width * Height) / 277

Common Aquarium Sizes and Dimensions

Below is a list of the most common aquarium sizes (in US Gallons) that have been sold over the years. Keep in mind, each manufacturer may add their own twist on sizes.

Size (US Gallons) Length x Width x Height Notes
2.5 Gallon Aquarium 12″ x 6″ x 8″
5 Gallon Aquarium 16″ x 8″ x 10″
10 Gallon Aquarium 20″ x 10″ x 12″
13 Gallon Aquarium 24″ x 10″ x 18″
15 Gallon Aquarium 24″ x 12″ x 12″
15 Gallon High Aquarium 20″ x 10″ x 18″
20 Gallon High Aquarium 24″ x 12″ x 16″
20 Gallon Long Aquarium 30″ x 12″ x 12″
20 Gallon Extra High Aquarium 20″ x 10″ x 24″ Same footprint as a 10 gallon
25 Gallon Aquarium 24″ x 12″ x 20″
29 Gallon Aquarium 30″ x 12″ x 18″
30 Gallon Aquarium 36″ x 12″ x 16″
30 Gallon Extra High Aquarium 24″ x 12″ x 24″
30 Gallon Breeder Aquarium 36″ x 18″ x 12″
33 Gallon Long Aquarium 48″ x 12″ x 14″
36 Gallon Aquarium 30″ x 12″ x 22″
38 Gallon Aquarium 36″ x 12″ x 20″
40 Gallon Breeder Aquarium 36″ x 18″ x 16″
40 Gallon Long Aquarium 48″ x 12″ x 16″
40 Gallon High Aquarium 36″ x 12″ x 20″
45 Gallon High Aquarium 36″ x 12″ x 24″
50 Gallon Aquarium 48″ x 12″ x 20″
50 Gallon High Aquarium 36″ x 18″ x 20″
55 Gallon High Aquarium 48″ x 12″ x 22″
60 Gallon High Aquarium 48″ x 12″ x 24″
65 Gallon High Aquarium 36″ x 18″ x 24″
70 Gallon High Aquarium 48″ x 18″ x 20″
75 Gallon High Aquarium 48″ x 18″ x 22″
90 Gallon Aquarium 48″ x 18″ x 24″
110 Gallon High Aquarium 48″ x 18″ x 30″
120 Gallon Aquarium 48″ x 24″ x 24″
125 Gallon Aquarium 72″ x 18″ x 20″
125 Gallon Tall Aquarium 60″ x 18″ x 24″
150 Gallon Aquarium 72″ x 18″ x 30″
150 Gallon Tall Aquarium 48″ x 24″ x 30″
180 Gallon Tall Aquarium 72″ x 24″ x 24″
180 Gallon Tall Aquarium 60″ x 24″ x 30″
225 Gallon Aquarium 72″ x 24″ x 30″
240 Gallon Aquarium 96″ x 24″ x 24″

 

See more aquarium dimensions and sizes:

Small Aquarium Sizes

Tank Size L x W x H Empty Weight Filled Weight
2 1/2 gallon 12″ x 6″ x 8″ 3 lbs 27 lbs
5 gallon 16″ x 8″ x 10″ 7 lbs 62 lbs
10 gallon “Leader” 20″ x 10″ x 12″ 11 lbs 111 lbs
15 gallon 24″ x 12″ x 12″ 21 lbs 170 lbs
15 gallon High 20″ x 10″ x 18″ 22 lbs 170 lbs

 

Medium Aquarium Sizes

Tank Size L x W x H Empty Weight Filled Weight
20 gallon High 24″ x 12″ x 16″ 25 lbs 225 lbs
20 gallon Long 30″ x 12″ x 12″ 25 lbs 225 lbs
25 gallon 24″ x 12″ x 20″ 32 lbs 282 lbs
29 gallon 30″ x 12″ x 18″ 40 lbs 330 lbs
30 gallon Breeder 36″ x 18″ x 12″ 48 lbs 348 lbs
40 gallon Breeder 36″ x 18″ x 16″ 58 lbs 458 lbs
40 gallon Long 48″ x 12″ x 16″ 55 lbs 455 lbs

 

Large Aquarium Sizes

Tank Size L x W x H Empty Weight Filled Weight
50 gallon 36″ x 18″ x 19″ 100 lbs 600 lbs
55 gallon 48″ x 13″ x 21″ 78 lbs 625 lbs
65 gallon 36″ x 18″ x 24″ 126 lbs 772 lbs
75 gallon 48″ x 18″ x 21″ 140 lbs 850 lbs
90 gallon 48″ x 18″ x 24″ 160 lbs 1050 lbs
125 gallon 72″ x 18″ x 21″ 206 lbs 1206 lbs
150 gallon 72″ x 18″ x 28″ 338 lbs 1838 lbs
180 Gallon 72″ x 24″ x 25″ 430 lbs 1870 lbs
225 Gallon 72″ x 27.5″ x 27.5″ 358 lbs 2158 lbs

 

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