Water Filter vs Bottled Water: 5-Year Cost Calculator (Australia 2026)
Drafted with AI assistance and checked against published specifications and certifications. First-hand measurements appear only where stated. How we make content
Most Australians spending $30–60 per week on bottled water will recover a filter’s full cost within 3–6 months. This calculator shows you the exact numbers for your household.
The three products we own are measured first-hand by Jayce Love, former Royal Australian Navy Clearance Diver; every other product is assessed on published manufacturer specifications and independent certification using our documented methodology — no gifted units, no brand payments.
All prices in AUD. Filter costs based on current Australian retail pricing (April 2026).
Average Australian household: $30–$60/week. Include all bottled water — bulk packs, individual bottles, water cooler deliveries.
Filter costs based on April 2026 Australian retail pricing. Annual filter costs are estimates — actual costs vary by usage volume and water quality. Bottled water cost per litre assumes ~3.5L/day household consumption across all uses (drinking + cooking). Break-even calculations assume full replacement of bottled water purchasing.
Not sure which filter removes what?
Different technologies remove different contaminants. Reverse osmosis (RO) removes virtually everything including fluoride, PFAS and arsenic. Carbon block removes chlorine and chloramine but not fluoride. Gravity filters depend on the canister type.
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