Aquarium water capacity guide

Popular Freshwater Tropical Fish

Aquarium Water Capacity Guide

 

 

The following table shows the approximate water capacity of aquariums of different sizes. Allowances have been made for the thickness of the glass and a water level 2.5cm (1 inch) below the top.


 
Width cm
(inches)		25
10"		30
12"		38
15"		46
18"
Height cm
(inches)		25
10"		30
12"		38
15"		46
18"		30
12"		38
15"		46
18"		61
24"		30
12"		38
15"		46
18"		61
24"		76
30"
Length
cm (inches)		             
30 (12") Liters
Imperial gallons
US  gallons		16.8
3.7
4.4		25.0
5.5
6.6		30.9
6.8
8.2		36.8
7.1
9.7		31.4
6.9
8.3		40.5
8.9
10.7		46.8
10.3
12.4		62.3
13.7
16.5		37.3
8.2
9.9		47.3
10.4
12.5		56.8
12.5
15.0		75.5
16.6
20.0		90.5
19.9
23.9
46 (18")Liters
Imperial gallons
US  gallons		25.5
5.6
6.7		37.7
8.3
10.0		46.8
10.3
12.4		55.9
12.3
14.8		47.3
10.4
12.5		60.9
13.4
16.1		70.9
15.6
18.8		94.1
20.7
24.9		56.4
12.4
14.9		71.4
15.7
18.9		85.5
18.8
22.6		114.1
25.1
30.2		137.7
30.3
36.4
61 (24") Liters
Imperial gallons
US  gallons		34.1
7.5
9.0		50.5
11.1
13.4		62.7
13.8
16.6		74.6
16.4
19.7		63.2
13.9
16.7		81.4
17.9
21.5		94.6
20.8
25.0		125.9
27.7
33.3		75.0
16.5
19.8		95.5
21.0
25.3		114.6
25.2
30.3		152.7
33.6
40.7		185.0
40.7
48.9
76 (30") Liters
Imperial gallons
US  gallons		42.7
9.4
11.3		61.8
13.6
16.3		80.0
17.6
21.2		92.7
20.1
24.5		78.6
17.3
20.8		101.4
22.3
26.8		118.7
26.1
31.4		157.3
34.6
41.6		94.1
20.7
24.9		120.0
26.4
31.7		143.7
31.6
38.0		191.4
42.1
50.6		230.0
50.6
60.8
91 (36") Liters
Imperial gallons
US  gallons		51.4
11.3
13.6		74.1
16.3
19.6		95.9
21.1
25.4		111.8
24.6
29.6		94.6
20.8
25.0		121.8
26.8
32.2		142.3
31.3
37.6		189.1
41.6
50.0		113.2
24.9
29.9		144.1
31.7
38.1		172.3
37.9
45.6		227.8
50.1
60.3		277.3
61.7
73.4
99 (39") Liters
Imperial gallons
US  gallons		55.9
12.3
14.8		80.5
17.7
21.3		104.1
22.9
27.5		120.9
26.6
32.0		102.7
22.6
27.2		131.8
29.0
34.9		154.6
34.0
40.9		205.0
45.1
54.2		122.7
27.0
32.5		155.9
34.3
41.2		186.8
41.1
49.4		249.1
54.8
65.9		300.0
66.2
79.4
122 (48") Liters
Imperial gallons
US  gallons		69.1
15.2
18.3		99.1
21.8
26.2		128.2
28.2
33.9		149.6
32.8
39.6		126.8
27.9
33.5		162.7
35.8
43.0		187.3
41.2
46.9		248.7
54.7
65.8		150.0
33.0
39.7		191.4
42.1
50.6		226.4
49.8
59.9		302.3
66.5
80.0		369.6
81.3
97.8
152 (60")Liters
Imperial gallons
US  gallons		 86.4
19.0
22.9		124.1
27.3
32.8		160.9
35.4
42.6		187.3
41.2
49.6		158.7
34.9
42.0		204.1
44.9
54.0		235.0
51.7
62.2		312.3
68.7
82.6		192.3
42.3
50.9		239.6
52.7
63.4		298.2
65.6
78.9		379.1
83.4
100.3		464.1
102.1
122.8

 

To use it, first find your aquarium width in the top row, and then the height in the row directly below it. Follow the height column down and read off the aquarium capacity where it coincides with the length of your aquarium.

Example

If your aquarium is 24in x 12in x 15in (61cm x 30cm x 38cm) L x W x H, you would find 12" (30cm) in the top row, then 15" (38cm) in the second row (under the 12" (30cm) column). You would then follow down the 15" (38cm) column to the 24" (61cm) row and where the 2 points meet you will find the capacity of your aquarium, in this example it's 62.7 Liters (13.8 imperial gallons / 16.6 US gallons).

If you want to print this chart without all the graphics on this page, click here to open it in a new window.

NOTE: You'll have to print the page in landscape, not portrait as we've made it a bit larger so it'll print clearly.

 

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