Water Filter Calculator

Track your water filter's lifespan and estimate when to replace the cartridge based on daily usage and trip count. Never get caught with a dead filter.

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Visualization

How It Works

Sawyer Squeeze filters are rated for 100,000 gallons but flow rate degrades over time. Backflush after every trip to maintain flow. Pump filters (MSR, Katadyn) typically last 1,000-2,000 liters per cartridge. Chemical treatments (Aquamira, chlorine dioxide) have no moving parts but take 15-30 min to work. UV purifiers (SteriPEN) kill everything but need batteries and clear water.