Water Tank Capacity Calculator
Calculate the capacity of your water tank. Supports both rectangular and cylindrical tank shapes with results in litres and gallons.
How to use this calculator
For Rectangular Tanks:
- Select "Rectangular Tank" from the shape dropdown
- Enter length, width, and height in meters
- Choose your preferred units (Litres or Gallons)
- Click "Calculate Capacity"
Formula: Volume = Length × Width × Height × 1000
For Cylindrical Tanks:
- Select "Cylindrical Tank" from the shape dropdown
- Enter diameter and height in meters
- Choose your preferred units (Litres or Gallons)
- Click "Calculate Capacity"
Formula: Volume = π × (Diameter/2)² × Height × 1000
Conversion Rate:
1 Litre = 0.264 US Gallons