In stimulate to number out the appropriate doses of chemistry for your pool, you need to determine how many gallons the water that holds. To execute that, you must use a leader to measure up your swimming pool to find out this four various numbers; Length, Width, typical depth and a multiplier that determines gallons.

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So below are the formulas to number out how much water is in her swimming pool:These formulas host true because that both Inground pools too as above ground pools.

Rectangular, Square or Free kind Pools:

Length x width x mean Depth x 7.5 = complete gallons

For example: 16′ x 32′ x 4.5′ x 7.5 = 17,280 Gallons

Circular Pools:

Diameter x Diameter x typical Depth x 5.9 = full gallons

For example: 18′ x 18′ x 4′ x 5.9 = 7,646 Gallons

Oval Pools:

Length x broad x typical Depth x 5.9 = full gallons

For example: 15′ x 30′ x 4′ x 5.9 = 10,620 Gallons

How to identify the typical Depth that a swimming Pool wherein the bottom slopes:

Below is a side-shot the the “typical” inground swimming pool that has actually a shallow finish (see “D”), then a slope the leads into the deep finish (see “C”).

First measure the depth the “D”, the shallow end (usually all over from 3′ come 5′), and also then measure up the depth the “C”, the deep end (usually anywhere in between 6′ and also 12′) . Then, add them together and also divide by 2. This is the typical depth of her pool.

For example, if her shallow end “D” is 3′, and your deep end “C” is 8′, this would certainly be her formula because that the mean Depth:

3′ + 8′ = 11′

11′ split by 2 = 5.5.

Therefore, in this example, your median depth would be 5 1/2 feet.

Most common Sizes of Inground rectangular Pools

Below, we have produced some handy charts that the most famous sizes that poolsand how plenty of gallons that water room in them.

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 POOL SIZE 4′ AVG. DEPTH 4.5′ AVG. DEPTH 5′ AVG. DEPTH 5.5′ AVG. DEPTH 6′ AVG. DEPTH 12′ X 24′ 8,640 9,720 10,800 11,880 12,960 14′ X 28′ 11,760 13,230 14,700 16,170 17,640 15′ X 30′ 13,500 15,200 19,900 18,600 20,250 16′ X 32′ 15,400 17,300 19,200 21,100 23,040 18′ X 36′ 19,400 21,900 24,300 26,700 29,160 20′ X 40′ 24,000 27,000 30,000 33,000 36,000 25′ X 45′ 33,750 37,968 42,187 46,406 50,625 25′ X 50′ 37,500 42,200 46,900 51,600 56,250 30′ X 50′ 45,000 50,525 56,250 61,875 67,500

Most usual Sizes Of above Ground Pools

### Above floor Pools through a Depth that 48″ (4′)

 SIZE GALLONS the WATER 12′ Round 3,398 15′ Round 5,310 18′ Round 7,646 21′ Round 10,407 24′ Round 13,593 27′ Round 17,204 28′ Round 18,502 30′ Round 21,240 33′ Round 25,700 15′ x 30′ Oval 10,620

 SIZE GALLONS of WATER 12′ Round 3,823 15′ Round 5,973 18′ Round 8,602 21′ Round 11,708 24′ Round 15,292 27′ Round 19,354 28′ Round 20,815 30′ Round 23,895 33′ Round 28,912 15′ x 30′ Oval 11,947

### More in-depth Information because that You:

If you room not utilizing a cabinet phone, and also are using a desktop computer computer, laptop or tablet, us do have a really detailed page with an ext information plus an digital Pool Water Calculator on our classic Pool and also Spa desktop computer site.Click here to watch our E-Z pool Water Calculator page.

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