Water Capacity Calculator

Estimate your water storage requirements based on your specific needs

Enter Your Requirements

Intended Use

Number of Occupants

Daily Consumption per Person (Litres)

Typical range: 100-200L per person per day

Desired Autonomy (Days)

How many days of water supply do you want to store?

Average Rainfall (mm)

Roof Collection Area (m²)

Collection Efficiency (%)

Typical range: 75-85% (accounts for losses)

Output Unit

Fill in the form to calculate your water storage needs