There are 4,264 gallons of water per each foot of depth for the pool. You must make your calculation based on the depth of the pool now that you have the above info.
How large is the pool? In ground or above ground? Shape? Above ground is easier to calculate. I have an oval above ground pool which is 18 x 38. It holds approx. 15,000 gallons. To get an accurate answer, you need to be far more specific.
38 cubic inches is about 0.16 US gallons.
There are 8 pints in one gallon. Therefore, 38 pints is equal to 38/8 = 4.75 gallons.
38 qts 1 gallon = 4 quarts 1 quart = 0.25 gallon
38 liters = 10.04 US gallons = 8.36 imperial gallons
38 ÷ 15 = 2 with remainder 8
38 Quarts.
9.2 gallons
filled to the rim... 6.776013143 US gallons
9.5 US gallons = 38 US quarts.
10.0385 US gallons.
Roughly 215 US gallons or 179 imperial gallons