Fish Tank Sizes: Dimensions, Gallons and Weight

Every standard aquarium size in one chart. Tap a tank to see its real water volume, weight, heater, filter, gravel and how many fish it holds.

Standard US tank sizes

Outside measurements, length × width × height. Filled weight includes water, gravel and light rockwork, but not the stand.

Tank	Inches	Centimeters	Liters	Filled, about
2.5 gallon	12 × 6 × 8	30 × 15 × 20	9	30 lb15 kg
5.5 gallon	16 × 8 × 10	41 × 20 × 25	21	60 lb30 kg
10 gallon	20 × 10 × 12	51 × 25 × 30	38	105 lb50 kg
15 gallon	24 × 12 × 12	61 × 30 × 30	57	155 lb70 kg
20 gallon high	24 × 12 × 16	61 × 30 × 41	76	205 lb95 kg
20 gallon long	30 × 12 × 12	76 × 30 × 30	76	205 lb95 kg
29 gallon	30 × 12 × 18	76 × 30 × 46	110	295 lb135 kg
30 gallon breeder	36 × 18 × 12	91 × 46 × 30	114	315 lb145 kg
37 gallon	30 × 12 × 22	76 × 30 × 56	140	380 lb170 kg
40 gallon breeder	36 × 18 × 16	91 × 46 × 41	151	405 lb185 kg
40 gallon long	48 × 12 × 16	122 × 30 × 41	151	410 lb185 kg
55 gallon	48 × 13 × 21	122 × 33 × 53	208	570 lb260 kg
65 gallon	36 × 18 × 24	91 × 46 × 61	246	650 lb295 kg
75 gallon	48 × 18 × 21	122 × 46 × 53	284	755 lb345 kg
90 gallon	48 × 18 × 24	122 × 46 × 61	341	910 lb415 kg
120 gallon	48 × 24 × 24	122 × 61 × 61	454	1,190 lb540 kg
125 gallon	72 × 18 × 21	183 × 46 × 53	473	1,220 lb555 kg
150 gallon	72 × 18 × 28	183 × 46 × 71	568	1,535 lb695 kg
180 gallon	72 × 24 × 25	183 × 61 × 64	681	1,770 lb805 kg
210 gallon	72 × 24 × 29	183 × 61 × 74	795	2,080 lb945 kg

Sizes sold in the UK, Europe and Australia.

Tank	Inches	Liters	US gallons	Filled, about
30 cube cm	11.8 × 11.8 × 11.8	27	7	35 kg75 lb
40×25×25 cm	15.7 × 9.8 × 9.8	25	7	35 kg75 lb
45×27×30 cm	17.7 × 10.6 × 11.8	36	10	45 kg105 lb
60×30×30 cm	23.6 × 11.8 × 11.8	54	14	70 kg150 lb
60×30×36 cm	23.6 × 11.8 × 14.2	65	17	80 kg175 lb
60×45×45 cm	23.6 × 17.7 × 17.7	122	32	145 kg315 lb
80×35×40 cm	31.5 × 13.8 × 15.7	112	30	135 kg300 lb
90×45×45 cm	35.4 × 17.7 × 17.7	182	48	215 kg480 lb
100×40×40 cm	39.4 × 15.7 × 15.7	160	42	190 kg420 lb
100×40×50 cm	39.4 × 15.7 × 19.7	200	53	245 kg540 lb
120×40×50 cm	47.2 × 15.7 × 19.7	240	63	290 kg645 lb
120×45×45 cm	47.2 × 17.7 × 17.7	243	64	290 kg635 lb
120×50×50 cm	47.2 × 19.7 × 19.7	300	79	360 kg795 lb
150×50×50 cm	59.1 × 19.7 × 19.7	375	99	445 kg985 lb
150×60×60 cm	59.1 × 23.6 × 23.6	540	143	640 kg1,410 lb
180×60×60 cm	70.9 × 23.6 × 23.6	648	171	765 kg1,685 lb

Measure it and use the calculators.