Water Storage Requirement Calculator

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Estimate daily water storage from people, demand and reserve days.

Water & TanksWorking calculatorMobile friendly

Water Storage Requirement CalculatorVisual reference for this tool.

Use this calculator for quick estimating and planning. Verify project-specific assumptions before final procurement or design.

Number of People (people)

Litres per Person (L/day)

Reserve Days (days)

Extra Allowance (%)

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Calculations run locally in your browser; no backend is required.

Storage = People × Litres/Person/Day × Reserve Days × Allowance

10 people at 135 L/day for 2 days require 2700 L before allowance.

For structural, electrical, code-compliance or safety-critical work, use this as a preliminary estimate and verify with a qualified professional.

Short answers for common estimation questions.

They are estimation values. Site conditions, product specifications and local practice can change final quantities.

Yes. Civil Micros is designed to work on mobile browsers without a backend.

Continue your calculation workflow.