Home
Back
Pool Volume Formula:
| From: | To: |
The pool volume formula calculates the total gallons of water in a rectangular swimming pool. It uses the pool's length, width, average depth, and a conversion factor (7.48 gallons per cubic foot) to determine the total volume.
The calculator uses the pool volume formula:
Where:
Explanation: The formula calculates the cubic feet of the pool (length × width × depth) and converts it to gallons by multiplying by 7.48 (since 1 cubic foot = 7.48 gallons).
Details: Knowing your pool's volume is essential for proper chemical treatment, pump sizing, filtration system maintenance, and heating calculations. Accurate volume ensures proper water balance and sanitation.
Tips: Measure your pool's length and width at their longest points. For depth, average the shallow and deep end depths if your pool has a slope. All measurements should be in feet.
Q1: How do I calculate average depth?
A: Add the shallow end depth and deep end depth, then divide by 2. For example: (3 ft + 8 ft) / 2 = 5.5 ft average depth.
Q2: What if my pool isn't rectangular?
A: This calculator is for rectangular pools. For circular pools, use π × radius² × depth × 7.48. For irregular shapes, consult a pool professional.
Q3: Why is 7.48 used in the formula?
A: 7.48 is the number of gallons in one cubic foot of water. This conversion factor is standard for pool volume calculations.
Q4: How accurate is this calculation?
A: It's accurate for rectangular pools with consistent depth. For pools with varying shapes or complex features, the calculation may need adjustment.
Q5: Can I use this for above-ground pools?
A: Yes, as long as the pool is rectangular. Measure the inside dimensions of the pool liner for most accurate results.