Backpacking Water Purification Cost Calculator
Planning a multi-day backcountry trip? Use this calculator to estimate how much your water purification method will cost based on trip length and daily consumption.
Estimated Total Trip Cost
—
Total Liters Needed—
Units Required—
Cost per Liter—
Total Trip Cost—
About this calculator
Estimate the cost per liter and total trip cost of purifying water using filters, tablets, or UV purifiers based on your trip length and daily water needs.
Frequently Asked Questions
Which purification method is cheapest?
Filters are usually the cheapest per liter over time since the same filter cartridge treats hundreds of liters, while tablets and UV batteries are consumed per use.
How much water should I plan for per day?
A common backcountry guideline is 2-4 liters per day depending on climate, exertion level, and elevation, plus extra for cooking.
Do I need backup purification?
Many backpackers carry a backup method (like tablets) in case a filter clogs or freezes, so factor that into your cost estimate.