What is the Pool Volume Calculator?
Calculate how many gallons a rectangular pool holds. Order the right amount the first time. These construction and DIY calculators estimate materials for common home projects and include sensible waste allowances.
How to use the Pool Volume Calculator
- Enter your length, your width, your shallow depth, your deep depth.
- Results update automatically as you type; you can also press Calculate.
- Read the output: us gallons, liters, cubic feet.
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With length = 30 ft, width = 15 ft, shallow depth = 3.5 ft, deep depth = 8 ft, the Pool Volume Calculator returns us gallons: 19,356; liters: 73,270; cubic feet: 2,587.5.
Tips for better results
- Add 5–15% for waste, cuts and breakage depending on the material.
- Measure twice and round up when buying — returns are easier than second trips.
- Coverage figures vary by product, so check the label or spec sheet.
⚠️ Material estimates are approximate. Follow local building codes and manufacturer instructions.
Frequently asked questions
What does the Pool Volume Calculator do?
Calculate how many gallons a rectangular pool holds.
How is it calculated?
The Pool Volume Calculator uses this method: Gallons = L × W × average depth × 7.48.
Can you show an example?
With length = 30 ft, width = 15 ft, shallow depth = 3.5 ft, deep depth = 8 ft, the Pool Volume Calculator returns us gallons: 19,356; liters: 73,270; cubic feet: 2,587.5.
Is the Pool Volume Calculator accurate?
It uses standard published formulas and is tested against known values, but results are estimates for guidance. Material estimates are approximate. Follow local building codes and manufacturer instructions.
Is this tool free and private?
Yes — the Pool Volume Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
Related tools
📬 Get new tools first — free
Join Taurang to hear about new calculators, converters and features. No spam; unsubscribe anytime.