HOW MANY LITRES OF WATER ARE IN MY POOL?

One of the most important things you may ever need to know about your pool is how many litres (or gallons) of water are in it. In order to properly sanitize and balance your pool water chemistry, or ensure you're using the right equipment, you'll need to know just how much water your pool can hold.

Just use the simple pool volume calculator below that corresponds to your pool shape to instantly determine your pool water volume!

Want to calculate your volume the old fashioned way? Our helpful chart below will show you the approximate volume of water your pool holds based on pool shape, size and average depth. Add your deep end and shallow end depths together and then divide them by two (in half) to get your average pool depth and find the correct volume.

Pool Shape	Pool Diameter in Feet	1 Ft Avg. Depth	2 Ft Avg. Depth	3 Ft Avg. Depth	4 Ft Avg. Depth	5 Ft Avg. Depth	6 Ft Avg. Depth	7 Ft Avg. Depth	8 Ft Avg. Depth	Pool Diameter in Metres
Round	12	3,200	6,400	9,600	12,800	16,000	19,200	22,400	25,600	3.7
Round	15	5,000	10,000	15,000	20,000	25,000	30,000	35,000	40,000	4.6
Round	18	7,200	14,400	21,600	28,800	36,000	43,200	50,400	57,600	5.5
Round	21	9,800	19,600	29,400	39,200	49,000	58,800	68,600	78,400	6.4
Round	24	12,800	25,600	38,400	51,200	64,000	76,800	89,600	102,400	7.3
Round	27	19,553	39,106	58,658	78,211	97,764	117,317	136,970	156,422	8.2

Pool Shape	Pool Size in Feet	1 Ft Avg. Depth	2 Ft Avg. Depth	3 Ft Avg. Depth	4 Ft Avg. Depth	5 Ft Avg. Depth	6 Ft Avg. Depth	7 Ft Avg. Depth	8 Ft Avg. Depth	Pool Size in Metres
Oval	12 x 24	7,300	14,600	21,900	29,200	36,500	43,800	51,100	58,400	3.7 x 7.3
Oval	15 x 27	10,100	20,200	30,300	40,400	50,500	60,600	70,700	80,800	4.6 x 8.2
Oval	15 x 30	11,400	22,800	34,200	45,600	57,000	68,400	79,800	91,200	4.6 x 9.1
Oval	16 x 32	12,900	25,800	38,700	51,600	64,500	77,400	90,300	103,200	4.9 x 9.8
Oval	16 x 36	14,750	29,500	44,250	59,000	73,750	88,500	103,250	118,000	4.9 x 11.0

Pool Shape	Pool Size in Feet	1 Ft Avg. Depth	2 Ft Avg. Depth	3 Ft Avg. Depth	4 Ft Avg. Depth	5 Ft Avg. Depth	6 Ft Avg. Depth	7 Ft Avg. Depth	8 Ft Avg. Depth	Pool Size in Metres
Rectangle	14 x 28	11,100	22,200	33,300	44,400	55,500	66,600	77,700	88,800	4.3 x 8.6
Rectangle	16 x 32	14,500	29,000	43,500	58,000	72,500	87,000	101,500	116,000	4.9 x 9.8
Rectangle	18 x 36	18,350	36,700	55,050	73,400	91,750	110,100	128,450	146,800	5.5 x 11.0
Rectangle	20 x 40	22,650	45,300	67,950	90,600	113,250	135,900	158,550	181,200	6.1 x 12.2
Rectangle	25 x 50	35,400	70,800	106,200	141,600	177,000	212,400	247,800	283,200	7.6 x 15.2

Gallons to Litres: Multiply Imperial Gallons by 4.546=litres       Multiply U.S. Gallons by 3.875=litres