How Many Gallons in a 24 ft Round Pool? (Intex)

Intex rates the Ultra XTR Frame 24 ft × 52 in at 12,481 gallons. Geometry at 90% fill gives 12,183 gallons for a 48 in wall, 13,198 for 52 in, and 13,706 for 54 in.

Quick answer: 24 ft round pool gallons by wall height

The 24 ft pool is the round size people search for most in our keyword data, usually with a wall height attached: "24 x 52" and "24 x 54". For 52 in, use Intex's 12,481 gallons if that's your pool, or our frame estimate of 12,274 for another brand. For a 54 in wall, the estimate is 12,746 gallons. Every wall height, with liters, is in the data block:

24 ft round pool: gallons at 90% fill
Wall height	Geometry	Frame pool estimate (× 0.93)	Inflatable estimate (× 0.87)
42 in wall	10,660 gal40,352 L	9,914 gal	9,274 gal
48 in wall	12,183 gal46,117 L	11,330 gal	10,599 gal
52 in wall	13,198 gal49,960 L	12,274 gal	11,482 gal
54 in wall	13,706 gal51,881 L	12,746 gal	11,924 gal

Geometry = π/4 × diameter² × water depth × 7.48. Real pools hold less than the nominal size suggests. The factors are medians of 26 manufacturer capacities (our own calculation).

24 ft models: manufacturer capacity
Model	Capacity	Fill basis	Real ÷ nominal geometry	Source
Intex Ultra XTR Frame 24ft x 52in	12,481 gal47,246 L	not stated	0.946	manufacturer

Starting doses for 11,330 gal
Change	Amount
+1 ppm FC (12.5% liquid chlorine)	12 fl oz343 mL
+10 ppm TA (baking soda)	1.6 lb720 g
+10 ppm CYA (stabilizer)	15.1 oz429 g

Closest full chart: 12,000 gal dose chart.

Download this data (CSV)

Always follow your product’s label directions. Pool and spa chlorine, bromine, shock and algaecides are EPA-registered pesticides: use products labeled for pool or spa use, and don’t swim or soak until levels are within the limit on your product’s label. If this page and a label disagree, the label wins.

Manufacturer capacities for this size

The Ultra XTR 24 × 52 is the only 24 ft round pool in our database. Its product page doesn't state a fill level. Still, 12,481 gallons is 0.946 of the 52 in geometry at 90% fill, which matches the frame pools that do state 90%. For a pool of unknown brand, our 0.93 estimate (12,274 gallons) is 207 gallons below Intex's number, under 2%. At this size, a 2% error is about 0.2 fl oz of 12.5% chlorine per ppm, far less than a test kit can detect.

The water weighs about 104,000 lb (12,481 gallons × 8.34 lb), roughly 52 tons. At 90% of a 52 in wall, that is about 243 lb on every square foot of the floor. This load is why the ground-preparation steps in your manual matter so much at this size.

Starting doses for this volume

First doses for a 24 ft × 52 in pool (12,481 gal)
Change	Amount
+1 ppm free chlorine (FC), 12.5% liquid chlorine	13 fl oz
+1 ppm FC, 10% liquid chlorine	16 fl oz
+1 ppm FC, 6% household bleach	26 fl oz
pH 7.8 to 7.5, 31.45% muriatic acid (TA 100, CYA 40)	12 fl oz
+10 ppm TA, baking soda	1.75 lb
CYA 0 to 30 / 0 to 40 ppm, stabilizer	3.1 lb / 4.15 lb
Salt to 3,200 ppm (new salt pool)	333 lb (eight 40 lb bags + 13 lb)

The acid amount changes with your total alkalinity (TA) and stabilizer (CYA). Use the muriatic acid calculator with your readings. Always follow the product label. It is a violation of federal law to use a pesticide product in a manner inconsistent with its labeling.

The data block's own starting doses use a 48 in wall (11,330 gallons). The 12,000 gallon dose chart is the closest full chart.

Calculator: your exact depth

The calculator opens at 24 ft with a 52 in wall. Change the wall height or fill level to match yours. If your pool has lost water to splash-out or is filled above the usual line, enter the depth you actually have.

Round pool volume calculator

Measured in

Diameterft

Depth

Wall heightin

Filled to% of wall

Pool type

Result for example values. Enter your own numbers.

12,274 gal46,463 L

Estimate: geometry 13,198 gal × 0.93 (typical ratio of real to nominal capacity for frame pools in our sample of 26 models). About ±7%.

Chemical amounts for about this size: 12,000 gallon pool dose chart.

Check your water for 12,274 gal: chlorine, pH, and alkalinity doses in order.

For the most accurate number, use your model's stated capacity or calibrate it: add a known amount of salt and measure how much the salt level rises.

Estimates, not guarantees. Always follow the product label. How we calculate

Chemicals per week for this size (estimate from your own loss)

Liquid chlorine use adds up fast at 12,500 gallons. A daily loss of 1.5 ppm is about 1.05 gallons of 12.5% chlorine a week, 2 ppm is 1.4 gallons, and 3 ppm is 2.1 gallons. At that rate, it is worth getting a price for a salt chlorine generator (see salt water vs chlorine pools). Before you compare, measure your real daily loss over a few days and price it per ppm in the chemical cost calculator. Liquid chlorine loses strength while stored, so a season's supply bought in spring is weaker by midsummer.

Safety. At these volumes, doses come in quarts and gallons. Pour slowly near a return jet with the pump on, one product at a time, and never mix chlorine with acid or with other chlorine products. Poison Control: 1-800-222-1222.

FAQ

How many gallons is a 24x52 above ground pool?

Intex rates the Ultra XTR Frame 24 ft × 52 in at 12,481 gallons. Geometry at 90% fill gives 13,198 gallons; our estimate for another brand's frame pool is 12,274.

How much chlorine for a 24 ft pool?

About 13 fl oz of 12.5% liquid chlorine, 16 fl oz of 10%, or 26 fl oz of 6% bleach per 1 ppm. A 3 ppm top-up is about 38 fl oz of 12.5% chlorine.

How long does it take to fill a 24 ft pool?

About 42 hours at 5 gallons per minute or 21 hours at 10 for 12,481 gallons. For every $1 your water bill charges per 1,000 gallons, the fill costs about $12.48; the fill cost calculator uses your rate.

Sources

Intex Ultra XTR Frame 24 ft × 52 in, read 2026-09-29: intexcorp.com
Weight of water, 8.34 lb per gallon: USGS Water Science School
Hayward, salt dosing: hayward.com
Volume formulas, correction factors, and dose math: methodology