Pool Volume Rectangular
Calculator
Results
- Average depth (m)
- 1.6
- Water volume (m³)
- 80
- Water volume (L)
- 80,000
- Water surface area (m²)
- 50
Pool and aquarium results
| Average depth (m) | 1.6 |
| Water volume (m³) | 80 |
| Water volume (L) | 80,000 |
| Water surface area (m²) | 50 |
formula-map diagram
- Average depth (m)
- 1.6
- Water volume (m³)
- 80
- Water volume (L)
- 80,000
- Water surface area (m²)
- 50
Pool and aquarium relationship
Formula
V = L × W × (shallow + deep) ÷ 2= 1.6
Note
This is a simplified model: it applies a standard geometric or physical formula to the numbers you entered. Volumes assume a regular shape and an even average depth, and the kidney shape uses the common 0.45 × (A + B) × L area approximation. Chemical doses convert a target change into a product mass using the strength or label dose you enter, because the amount of active ingredient varies from product to product; they ignore pH, temperature, buffering, sunlight, bather load and existing chemical interactions. Heating uses Q = m × c × ΔT with c = 4186 J/kg·K and ignores heat losses to air, ground and evaporation; evaporation and cover figures use the rate you enter, not local weather. Aquarium stocking by surface area is a rule of thumb, not a biological limit. Always follow the product label and test the water before and after dosing, and consult a pool or aquarium professional for anything you are unsure about.
More in Pool and aquarium
See all →Frequently asked questions
How is the volume of a rectangular pool calculated?+
Volume equals length times width times average depth, then converted to gallons or liters using a standard factor (7.48 gallons per cubic foot, or 1000 liters per cubic meter). If the pool has a shallow and a deep end, average the two depths first since the pool is essentially a sloped box.
Why does the calculator ask for average depth instead of just deep-end depth?+
Using the deep-end depth alone overstates the water volume because most pools slope from shallow to deep. Averaging shallow and deep depths approximates the sloped floor as a flat plane, which is accurate enough for chemical dosing and fill-time estimates.
Does the result include the water above the tile line or just up to normal operating level?+
The calculation assumes water is filled to normal operating level, typically mid-skimmer height, not to the pool deck. Filling higher than that increases volume slightly but is not the standard reference point for chemical calculations.
Why do my chemical dosages seem off even though my pool volume is correct?+
Chemical dosing depends on accurate volume, but also on current chemistry readings; an outdated water test is the most common cause of over- or under-dosing, not a volume error. Always pair a fresh test with the volume figure.
How much does an irregular corner or rounded edge affect the volume estimate?+
For most residential pools, minor curves or radius corners change total volume by only 1-3%, well within the margin needed for chemical dosing. For diving pools or unusual shapes, consider splitting the pool into sections and summing their volumes for better precision.