Standard In-Ground Pool Volumes in Gallons by Size
Pool Size
(in feet)
3.5 ft
Avg Depth
4 ft
Avg Depth
4.5 ft
Avg Depth
5 ft
Avg Depth
12×247,6008,6009,70010,800
14×2810,30011,80013,20014,700
15×3011,80013,50015,20016,900
16×3213,40015,40017,30019,200
18×3617,00019,40021,90024,300
19×3819,00021,70024,40027,100
20×4021,00024,00027,00030,000
22×4425,40029,00032,70036,300
25×4529,53133,75037,96842,187
25×5032,80037,50042,20046,900
30×5039,37545,00050,52556,250