1 cubic foot contains 6 and one quarter UK gallons. So in a pool 12 X 20 x 4 feet there will be 12 x 20 x 4 x 6 1/4 gallons or 6000 UK gallons A US gallon is only 3/4 the size of a UK gallon, so, if your pool is in the USA, the number of gallons is 8000.
Cannot be answered with only these measurements. You need to specify what shape the pool is. Also, for a rectangular pool, the length, width and depth are needed. For a round pool, the diameter and depth are needed.
The answer can only be given if, in addition to the length and width of the pool, the depth is also given. It is also critcally important that the units used are given: 12 yards * 4 yards? metres?
Answered previously http://wiki.answers.com/Q/How_much_water_will_an_18_foot_pool_by_4_feet_deep_hold
49.87 gallons for each inch of the water's depth.
length x width x 4' x 7.5 = gal.
4320 Gallons should be about right.
2500
9,440 gallons.
This pool can hold a maximum of about 9,403 gallons of water.
The pool is 20*48*4 = 3840 cubic feet. And 1 cubic foot is about 7.48 gallons, so total the pool can hold 28723.2 gallons.
This pool can hold up to about 7,181 gallons of water.
approximately 4,440 gallons.
About 7,100 gallons of water.
It depends on how deep the pool is.
Use 1 cubic foot = 7.4805 gallonsVolume of the pool = (pi) R2 (height) = (pi) (10)2 (4) = 400 pi cubic feet = 9,400.3 gallons (rounded)
This size pool holds up to about 12,926 gallons of water.
how many gallons of water does a swimming pool 15 feet by 4 feet deep hold
10,408 gallons.
357 gallons