Garden & Landscaping calculator
Pool Volume Calculator
Estimate pool water volume from length, width and average depth.
Estimate pool water volume from length, width and average depth. Use finished project dimensions and product-specific data where available rather than generic defaults. The most sensitive assumption here is average depth and sloping floor. Pools with sloping floors should use a suitable average depth or separate sections. Steps, benches and rounded ends reduce the water volume compared with a full rectangular box.
What you need to enter
The Pool Volume Calculator uses the following project information to calculate the result.
- Length
- Width
- Depth / height
Calculator result
Volume
How the Pool Volume Calculator works
Core method: length × width × depth. On the Pool Volume Calculator, this relationship is applied specifically to pool water volume from length, width and average depth. Compatible measurements are converted to a common internal unit before calculation, then the result is returned in the selected unit system. The main variable to verify is average depth and sloping floor.
Pool Volume Calculator worked example
Pool Volume Calculator example: A rectangular pool 8.0 m × 4.0 m with an average depth of 1.4 m holds about 44.8 m³, or 44,800 litres. For a sloping floor, use a representative average depth or calculate shallow and deep sections separately. Before relying on that figure, check average depth and sloping floor; the final decision should also follow the actual product or project specification.
Important calculation assumptions
For pool water volume from length, width and average depth, pools with sloping floors should use a suitable average depth or separate sections. Steps, benches and rounded ends reduce the water volume compared with a full rectangular box.
Frequently asked questions
Do I need exact project measurements for the Pool Volume Calculator?
Measure length, width and average depth/height in consistent units. For sloping or irregular shapes, calculate separate sections. The Pool Volume Calculator then applies those figures to pool water volume from length, width and average depth.
Why should I check average depth and sloping floor in the Pool Volume Calculator?
For the Pool Volume Calculator, use project-specific values for average depth and sloping floor. Pools with sloping floors should use a suitable average depth or separate sections. Steps, benches and rounded ends reduce the water volume compared with a full rectangular box.
When should I round the Pool Volume Calculator result?
For the Pool Volume Calculator, use the result in context: use the water volume for chemical, heating and circulation calculations. For sloping floors, steps or benches, calculate sections or use a defensible average depth.