Swimming Pool Water Volume Calculator & Charts

Swimming Pool Water Volume Calculator & Charts

How to calculate the Water Volume of a Swimming Pool using Charts or a Calculator

Why do you need to know you Pool's Water Volume?

In order to figure out proper doses of chemicals for your pool, you need to accurately determine how many gallons of water it holds.  To do that, you need to know four different numbers: the length, width, average depth, and a multiplier for your type of pool.

Here is the formula:

Length x Width x Average Depth x Multiplier = Volume in US Gallons

Determine the Multiplier:

- Rectangle, Square, or Free-Form pool: Multiplier = 7.5
- Round or Oval pool: Multiplier = 5.9

Determine the Average Depth:

To determine the average depth in a pool where the bottom slopes, measure the shallow end, the deep end depth. Add them together and divide by two (2).

Example:
   Shallow End = 2ft. Deep End = 10ft
   2ft + 10ft = 12ft; 12/2 = 6ft Average Depth


Standard In-Ground Pool Sizes
with Varying Average Depths

POOL
SIZE
3.5 ft
Avg Depth
4 ft
Avg Depth
4.5 ft
Avg Depth
5 ft
Avg Depth
5.5 ft
Avg Depth
  12 ft x 24 ft   7,600 8,600 9,700 10,800 11,900
14 ft x 28 ft 10,300 11,800 13,200 14,700 16,200
15 ft x 30 ft 11,800 13,500 15,200 16,900 18,600
16 ft x 32 ft 13,400 15,400 17,300 19,200 21,100
18 ft x 36 ft 17,000 19,400 21,900 24,300 26,700
19 ft x 38 ft 19,000 21,700 24,400 27,100 29,800
20 ft x 40 ft 21,000 24,000 27,000 30,000 33,000
22 ft x 44 ft 25,400 29,000 32,700 36,300 39,900
25 ft x 45 ft 29,531 33,750 37,968 42,187 46,406
25 ft x 50 ft 32,800 37,500 42,200 46,900 51,600
30 ft x 50 ft 39,375 45,000 50,525 56,250 61,875

Can't find your In-Ground Pool size above?
Then use this Calculator!!

Length ........................ ft
Width .......................... ft
Depth (deep end) ....... ft
Depth (shallow end) .. ft

 

Approximate Water Volume is:
US gallons or UK Gallons.

(works with Square, Rectangle, Grecian, Roman
& is a good approximation for Oval & many Freeform pools)


Standard Above Ground Pool Sizes
with a Pool Wall of 48 inches

12 ft Round ~ 2,975 gals 12ft x 24ft Oval ~ 5,948 gals
15 ft Round ~ 4,646 gals 15ft x 30ft Oval ~ 9,293 gals
18 ft Round ~ 7,646 gals 16ft x 32ft Oval ~ 10,573 gals
21 ft Round ~ 9,106 gals 18ft x 33ft Oval ~ 12,267 gals
24 ft Round ~ 11,895 gals
27 ft Round ~ 15,054 gals
30 ft Round ~ 18,585 gals
33 ft Round ~ 22,488 gals

Standard Above Ground Pool Sizes
with a Pool Wall of 52 inches

12 ft Round ~ 3,398 gals 12ft x 24ft Oval ~ 6,797 gals
15 ft Round ~ 5,310 gals 15ft x 30ft Oval ~ 10,620 gals
18 ft Round ~ 8,602 gals 16ft x 32ft Oval ~ 12,084 gals
21 ft Round ~ 10,408 gals 18ft x 33ft Oval ~ 14,019 gals
24 ft Round ~ 13,594 gals 18ft x 40ft Oval ~ 19,116 gals
27 ft Round ~ 17,205 gals
30 ft Round ~ 21,240 gals
33 ft Round ~ 25,700 gals

Round Pool Volume Calculator

Diameter ..................... ft
Depth (deep end) ....... ft
Depth (shallow end) .. ft

 

Approximate Water Volume is:
US gallons or UK Gallons.





Last Updated: 07/31/2014 02:31 AM - ID:1694