Welcome to "Aquarium Dimensions"

Your one-stop shop for Reef Tank and Freshwater Fish Tank Aquarium Dimension and Size Questions.

Please see the chart below for standard aquarium sizes arranged by gallons.

Please also feel free to use our Aquarium Volume Calculator and read our reviews on the major aquarium manufacturers.

All dimensions in this fish tank size table are outside edge to outside edge using the following picture for Width, Length, and Height:

fish tank dimensions

Size (US Gal) Type Length (in.) Width (in.) Height (in.) Brand Pictures
2 1/2 Glass, Mini 12 3/16 6 1/8 8 1/8 All Glass Aquarium (AGA) - Aqueon* All Glass Aquarium (AGA) Aqueon 2.5 Gallon Aquarium
2 1/2 Glass, Mini 12 6 8 Marineland
5 Glass 16 3/16 8 3/8 10 1/2 AGA - (Aqueon) All Glass Aquarium (AGA) Aqueon 5 Gallon Aquarium
5 Glass 16 8 10 Marineland
10 Glass 20 1/4 10 1/2 12 9/16 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 10 Gallon Aquarium
10 Glass 20 10 12 Marineland
14 BioCube Glass, All-In-One 15.5 15 16.7 Oceanic OCEANIC BIOCUBE SYSTEM - SIZE 14
15 Glass 24 1/4 12 1/2 12 3/4 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 15 Gallon Aquarium
15 Glass 24 12 12 Marineland
15 High Glass 20 1/4 10 1/2 18 3/4 AGA (Aqueon)
16 High Glass 20 10 19 Marineland
20 High Glass 24 1/4 12 1/2 16 3/4 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 20 Gallon High Aquarium
20 High Glass 24 12 16 Marineland
20 Extra High Glass 20 10 24 Marineland
20 Long Glass 30 1/4 12 1/2 12 3/4 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 10 Gallon Aquarium
20 Long Glass 30 12 12 Marineland
25 Glass 24 1/4 12 1/2 20 3/4 AGA (Aqueon)
25 Glass 24 12 20 Marineland
29 Glass 30 1/4 12 1/2 18 3/4 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 29 Gallon Aquarium
29 Glass 30 12 18 Marineland
29 Biocube Glass, All-In-One 20.8 20.1 19 Oceanic Biocube 29 Gallon Aquarium
30 Glass 36 1/4 12 5/8 16 3/4 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 30 Gallon Aquarium
30 Glass 36 13 16 Marineland
30 Extra High Glass 24 1/4 12 1/2 24 3/4 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 30 Gallon Aquarium
30 Extra High Glass 24 12 24 Marineland
30 Breeder Glass 36 3/16 18 1/4 12 15/16 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 30 Gallon Aquarium
30 Breeder Glass 36 18 12 Marineland
33 Long Glass 48 1/4 12 3/4 13 3/8 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 33 Gallon Aquarium
37 Glass 30 1/4 12 1/2 22 3/4 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 37 Gallon Aquarium
37 Glass 30 12 22 Marineland
38 Glass 36 1/4 12 5/8 19 3/4 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 38 Gallon Aquarium
40 Breeder Glass 36 3/16 18 1/4 16 15/16 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 10 Gallon Aquarium
40 Breeder Glass 36 18 16 Marineland
40 Long Glass 48 1/4 12 3/4 16 7/8 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 40 Gallon Aquarium
40 Long Glass 48 13 16 Marineland
40 High Glass 36 13 20 Marineland
45 Glass 36 1/4 12 5/8 23 3/4 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 45 Gallon Aquarium
50 Glass 36 3/8 18 3/8 19 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 50 Gallon Aquarium
55 Glass 48 1/4 12 3/4 21 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 55 Gallon Aquarium
55 Glass 48 13 20 Marineland
57 Glass, Frame- less 36 18 21 Oceanic All Glass Aquarium (AGA) Aqueon 57 Gallon Aquarium
60 Glass 48 13 24 Marineland
65 Glass 36 3/8 18 3/8 25 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 65 Gallon Aquarium
65 Glass 36 18 24 Marineland
75 Glass 48 1/2 18 1/2 21 1/8 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 75 Gallon Aquarium
75 Glass 48 18 21 Marineland
90 Glass 48 1/2 18 1/2 25 3/8 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 90 Gallon Aquarium
90 Glass 48 18 24 Marineland
110 Glass 48 18 30 AGA (Aqueon)
120 Glass 48 1/2 24 1/2 25 1/2 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 120 Gallon Aquarium
120 Glass 48 24 24 Marineland
125 Glass 72 1/2 18 1/2 23 3/8 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 125 Gallon Aquarium
150 Glass 72 1/2 18 1/2 29 1/2 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 150 Gallon Aquarium
180 Glass 72 1/2 24 1/2 25 5/8 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 180 Gallon Aquarium
210 Glass 72 1/2 24 1/2 29 5/8 AGA (Aqueon) All Glass Aquarium (AGA) Aqueon 210 Gallon Aquarium

*All-Glass-Aquarium was bought by Aqueon. The AGA name brand is still used on a number of products.

We will continue to add Brands and Sizes to this site. Please feel free to email us with any questions or comments