Aquarium Volume Calculation Tables

The volume charts below provide a rough guide to the volume of water held in rectangular aquariums.

Metric Volume Table

Width (cm)	20	25	30			38			45
Depth (cm)	20	25	30	38	45	30	38	45	30	38	45	60
Length (cm)	Volume (Litres)
30	10	15	23	29	35	29	37	44	35	44	53	70
38	12	19	27	34	41	34	43	53	41	52	62	83
45	15	24	35	44	53	44	56	67	53	67	80	107
60	20	33	47	59	71	59	74	89	71	89	107	143
90	30	49	71	89	107	89	112	134	107	134	161	215
120	40	65	95	119	143	119	149	179	143	179	215	287

Imperial Volume Table

Width (in)	8	10	12			15			18
Depth (in)	8	10	12	15	18	12	15	18	12	15	18	24
Length (in)	Volume (Gallons)
12	2	4	5	6	8	6	8	10	8	10	12	16
15	3	4	6	7	9	7	9	12	9	12	14	18
18	4	5	8	10	12	10	12	15	12	15	18	24
24	5	7	10	13	16	13	16	20	16	20	24	31
36	7	11	16	20	24	20	25	30	24	30	35	47
48	9	15	21	26	32	26	33	39	32	39	47	63