Formula For Swimming Pool Gallons

For our final example let s say that i want to know how many us gallons of water it will take to fill an oval tank that measures 30 feet in width 20 feet in length and 10 feet deep.

Formula for swimming pool gallons. Chlorine is the most popular disinfectant for swimming pools. Assume you have found. The actual formula and gallons for 15 x30 pool. Multiplier 5 9 for round or oval pools.

These formulas hold true for both inground pools as well as above ground pools. Chlorine is very effective at eliminating most microorganisms in the water that. Let s say that the pool is 12 ft wide and 50 ft long. Check pool chlorine levels often.

Rectangular square or free form pools. Here is the pool volume formula. Let s say we re working with the same circle that has a depth of 4 and a diameter of 9 the same as having a radius of 4 5. V depth x diameter squared x 5 9.

To determine the average depth in a pool where the bottom slopes measure the shallow end the deep. How to determine the average depth of a swimming pool where the bottom slopes. Enter the dimensions of the swimming pool. Formula for average gallons in rectangle square or freeform pools.

For faster but slightly less accurate results you can also plug the depth and diameter of the pool into the following formula. Length x width x average depth x multiplier volume in us gallons. Length x width x average depth x multiplier volume in us gallons. Free chlorine is most commonly tested because it represents the amount of chlorine free for disinfecting.

15 x 30 x 4 x 5 9 10 620 gallons. Multiplier 7 5 for rectangle square or free form pools. The pool gallon calculator first calculates the surface area. The pool calculator shows the volume of water needed to fill up the pool.

In our case it s 22 441 57 us gallons. There are three main measurements for chlorine free chlorine fc combined chlorine cc ad total chlorine tc. Determine the average depth. The above formula is valid for all the above ground and inground swimming pools.

So here are the actual formulas to figure out how much water is in your swimming pool. Determine the average depth. Length x width x average depth x 7 5 volume in gallons length times width gives the surface area of the pool. Below is a side shot of the typical inground pool that has a shallow end see d then a slope that leads into the deep end see c.

Since there are 7 5 gallons in each cubic foot multiply the cubic feet of the pool by 7 5 to arrive at the volume of the pool expressed in gallons. Length x width x average depth x 5 9 total gallons. Depth is gradually changing from 4 to 6 feet. The volume of this pool 4 x 9 x 9 x 5 9 1 911 gallons.

You can compute the number of gallons it would hold as follows.