AQUA Rain Water · Planning tool

Storage Quantity Estimator

Turn a gross design storage value into a rounded-up theoretical unit count for an early product comparison.

Calculate a theoretical quantity

Gross design storage (m³)

Nominal usable volume per unit

Formula: rounded-up units = ceil((gross storage in m³ × 1,000) ÷ nominal usable litres per unit).

Enter both selections to calculate.

This is a theoretical quantity only; it does not include layout losses, connections, access zones, cover, loading, groundwater, flotation, backfill or maintenance requirements.
Project-specific hydraulic, geotechnical, structural and authority review remains required before a product configuration or final quantity is selected.