Every standard fish tank size, measured

Dimensions, weight and what fits, for 20 aquariums from 2.5 to 180 gallons.

All 20 tanks at the same scale

Each one is drawn from the front on a 30 inch stand. Pick any tank for its full measurements.

Outside dimensions in inches. Filled weight includes water and two inches of gravel.

Tank	Length	Width	Height	Empty	Filled	Heater
Small tanks
2.5 Gallon	12	6	8	4 lb	33 lb	25 W
5 Gallon	16	8	10	7 lb	62 lb	25 W
10 Gallon	20	10	12	10 lb	115 lb	50 W
15 Gallon	24	12	12	20 lb	176 lb	75 W
20 Gallon High	24	12	16	24 lb	222 lb	100 W
20 Gallon Long	30	12	12	23 lb	229 lb	100 W
Medium tanks
29 Gallon	30	12	18	42 lb	323 lb	150 W
30 Gallon Breeder	36	18	12	44 lb	364 lb	150 W
33 Gallon Long	48	13	12	47 lb	390 lb	150 W
37 Gallon	30	12	24	54 lb	401 lb	150 W
40 Gallon Breeder	36	18	16	54 lb	457 lb	200 W
55 Gallon	48	13	21	90 lb	616 lb	250 W
60 Gallon Breeder	48	18	16	84 lb	678 lb	250 W
65 Gallon	36	18	24	91 lb	704 lb	300 W
75 Gallon	48	18	21	123 lb	842 lb	300 W
Large tanks
90 Gallon	48	18	24	137 lb	980 lb	2 x 200 W
120 Gallon	48	24	24	156 lb	1,281 lb	2 x 250 W
125 Gallon	72	18	22	178 lb	1,360 lb	2 x 250 W
150 Gallon	72	18	28	286 lb	1,677 lb	2 x 300 W
180 Gallon	72	24	24	286 lb	1,974 lb	2 x 400 W

Brands differ by up to an inch, and weights are estimates worked out from glass thickness. Treat them as close, not exact.

Straight answers for the sizes and fish people ask about most.

Four calculators for tanks that are not a standard size, or for checking a plan before you buy.