Pool Calculator
Use this pool calculator to estimate pool volume, gallons, and fill cost from the pool footprint and shallow-to-deep depth profile. It is a quick planning tool for backyard pools and renovation checks.
Result
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What This Pool Calculator Helps You Do
Use this pool calculator to estimate pool volume, gallons, and fill cost from the pool footprint and shallow-to-deep depth profile. It is a quick planning tool for backyard pools and renovation checks.
How to Calculate Pool Calculator
- Measure the pool inputs - Enter the dimensions, density, spacing, or strength values shown on the page.
- Check the units - Keep every input in the same unit system so the result stays consistent and easy to compare.
- Choose the solve mode - Select the calculation you want to run, such as weight, volume, cost, count, or reaction.
- Read the output - Use the main result and the extra detail rows to confirm the estimate before you order or build.
Pool Calculator Formula
| Symbol | Definition | Unit |
|---|---|---|
| L | Pool length | m |
| W | Pool width | m |
| d1 | Shallow depth | m |
| d2 | Deep depth | m |
| c | Water cost | $/m3 |
Worked Examples
- length: 12
- width: 6
- shallowDepth: 1.2
- deepDepth: 1.8
- waterCostPerM3: 3.5
Result: Pool volume = 108.00 m3
A typical backyard pool check starts with the average depth. The estimate is 108.00 m3.
- length: 10
- width: 4
- shallowDepth: 1.0
- deepDepth: 1.6
- waterCostPerM3: 4
Result: Pool water = 52000.00 L
Liters are helpful when you compare fill capacity to a delivery tanker. The estimate is 52000.00 L.
- length: 15
- width: 7
- shallowDepth: 1.1
- deepDepth: 2.0
- waterCostPerM3: 5
Result: Pool cost = 813.75 $
Cost estimates help you budget a refill or a new installation. The estimate is 813.75 $.
- length: 20
- width: 8
- shallowDepth: 1.3
- deepDepth: 2.5
- waterCostPerM3: 3.2
Result: Pool volume = 304.00 m3
Pools with a deeper end need the average depth rather than the shallow depth alone. The estimate is 304.00 m3.
How to Interpret Your Results
| Range | Meaning | Action |
|---|---|---|
| < 20 m3 | Small pool | Good for compact garden or plunge pool planning. |
| 20–60 m3 | Medium pool | Typical family pool size with a meaningful fill cost. |
| > 60 m3 | Large pool | Review water supply, pump capacity, and refill time before you proceed. |
Frequently Asked Questions
Sources
Last reviewed: March 2026