Water Tank Capacity Calculator with Unit Conversion
Accurate water storage is critical for residential, commercial, and industrial buildings. This Water Tank Capacity Calculator lets you calculate tank capacity quickly and easily using Length, Width, and Height in Feet (ft) or Meter (m).
Recommended Tank Sizes (India)
| Usage Type | Typical Capacity |
|---|---|
| Small House | 1000 โ 2000 L |
| Medium House | 3000 โ 5000 L |
| Apartments | 5000 โ 10000 L |
| Commercial | As per demand |
Water Tank Capacity Calculator
Water Tank Dimension & Capacity Calculation Diagram
Enter tank dimensions
How to Use This Calculator
1. Select unit: Feet (ft) or Meter (m)2. Enter Length, Width, and Height
3. Capacity is calculated automatically
4. Suggested tank sizes are shown on the right
Recommended Tank Sizes (Approx.)
Rectangular Tank
Circular Tank
Rectangular Tank
Circular Tank
The calculator automatically provides results in Litres and Gallons, and suggests practical Rectangular and Circular tank dimensions. Itโs ideal for:
- Overhead water tanks (OHT)
- Underground sumps
- RCC, steel, and plastic tanks
- Residential, commercial, and industrial buildings

Benefits
- Instant and accurate results
- Supports Feet and Meter inputs
- Provides practical tank size suggestions
- Helps prevent overdesign and under-capacity issues
- Works on desktop and mobile
Conclusion
This Feet โ Meter Water Tank Capacity Calculator helps civil engineers, plumbers, and homeowners make smart decisions. Enter your tank dimensions, see the capacity in Litres and Gallons, and get practical tank size suggestions instantly.
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