L-Shape Pool Volume Calculator Liters, Gallons, & Cubic ft

How much water your L-Shape pool can hold? Simply enter your swimming pool’s length and width of main and leg section, & depth into our L-shape pool volume calculator for an instant, accurate result in gallons, liters, cubic ft.

How to Calculate the Volume of an L-Shaped Pool

An L-shaped pool looks like two rectangles joined together, like the letter L. To figure out how much water it holds, you need to break it into two simple parts, measure carefully, and use an easy formula.

Understanding the Basic Measurement Fundamentals

Before you start, here is the important information you will need to calculate volume of L-shape swimming pool.

1. Length and Width of the Main Section (Rectangle A)

• Measure the length and width of the larger part of the pool.

2. Length and Width of the Leg Section (Rectangle B)

• Measure the length and width of the smaller leg part of the pool.

3. Depth of the Pool

• If the depth is the same everywhere, use that number.
• If there’s a shallow and a deep end, find the average depth.

4. Unit of Measurement

• Make sure all your measurements are in the same unit (feet, meters, etc.)

5. Conversion Factor

To convert cubic feet to gallons:

• 1 cubic foot = 7.48 US gallons

Or cubic meters to liters:

• 1 cubic meter = 1,000 liters

Step-by-Step Guide for Swimming Pool Volume Calculation

Step 1: Measure the Length and Width of Each Section

Measure the length and width of both rectangles.

Example:

Main Section (A):

• Length = 30 feet
• Width = 15 feet

Leg Section (B):

• Length = 12 feet
• Width = 10 feet

Step 2: Measure the Depth

Check how deep the pool is.

• If the depth is the same everywhere, use that.
• If it has a shallow and deep end, add them together and divide by 2 to find the average.

Example:

• Shallow end = 4 feet
• Deep end = 6 feet

Average Depth = (4 + 6) ÷ 2 = 5 feet

Step 3: Calculate the Volume of Each Section (in Cubic Feet)

Use the rectangle volume formula for both sections:

Volume = Length × Width × Average Depth

Example:

• Main Section (A):
  30 × 15 × 5 = 2,250 cubic feet
• Leg Section (B):
  12 × 10 × 5 = 600 cubic feet

Step 4: Add Both Volumes Together

Now, add the two volumes together:

• 2,250 + 600 = 2,850 cubic feet

Step 5: Convert Cubic Feet to Gallons

Use the conversion factor:

• 1 cubic foot = 7.48 gallons

Now multiply:

• 2,850 × 7.48 = 21,318 gallons

Your L-shaped pool can hold about 21,318 gallons of water.

Common Inground Pool Sizes and Volume in Gallons

Pool Size (ft)	Approx. Gallons (5.5 ft avg. depth)
16′ × 32′ + 8′ × 16′	18,480 gallons
18′ × 36′ + 10′ × 20′	26,730 gallons
20′ × 40′ + 12′ × 20′	33,550 gallons
20′ × 42′ + 12′ × 24′	37,180 gallons
22′ × 44′ + 14′ × 24′	44,330 gallons
24′ × 44′ + 14′ × 26′	49,800 gallons
24′ × 46′ + 16′ × 26′	54,150 gallons
25′ × 50′ + 16′ × 30′	63,450 gallons
26′ × 50′ + 18′ × 30′	68,450 gallons
30′ × 60′ + 20′ × 30′	90,450 gallons

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