# Capacity of a Square or Rectangular Shaped Cistern

Calculate the capacity of a square or rectangular shaped shaped cistern using feet and inches for measurements.

### Square/Rectangle Cistern Capacity

#### Calculation

- enter the inside length of the cistern (feet and inches)
- enter the inside width of the cistern (feet and inches)
- enter the inside height of the cistern (feet and inches)

#### Results

- volume of cistern in cubic feet
- capacity of cistern in US Gallons
- capacity of cistern in Imperial Gallons
- capacity of cistern in Litres