Household · official-source review · reviewed 2026-10-10
Bottled water feels cheap one bottle at a time and adds up across a whole year.
Compare the yearly cost of the bottles you buy with the yearly cost of a filter or pitcher.
Households that buy bottled water for drinking and want a plain cost comparison.
Use the source document or official route that applies to your situation. This guide does not contact another person or verify external information.
Count the bottles your household buys in a normal week. Use a real count from receipts.
Write the price you pay for one bottle. Use the price on your most recent receipt.
Add the filter or pitcher cost for a year, including replacement cartridges.
Multiply the weekly bottles by 52 and the price. Subtract the filter cost to see the difference.
Read your local water quality report before you change anything. Filters do not remove every contaminant.
You buy 14 bottles a week at $1.50 each. That is $1,092 a year, while a $60 filter costs $60 a year.
Use your own source and details. The example is not a record about a real person or organization.
U.S. Centers for Disease Control and Prevention · reviewed 2026-10-10
What this source supports: Daily fluid needs vary by age, activity, health, and weather; general healthy adults are guided by thirst.
Source limit: This tool gives a general estimate. Ask a clinician about fluid needs during illness, pregnancy, or intense exercise.
These sources support the statements above. They do not show that every person needs this guide. They do not show a specific result.
This guide compares costs only. It does not judge water quality, and it does not replace a local water report or the filter maker's instructions.
This tool gives a general estimate. Ask a clinician about fluid needs during illness, pregnancy, or intense exercise.
Use current instructions from the responsible organization. This guide is a planning aid, not an official decision or a substitute for qualified advice.
Compare the yearly cost of the bottles you buy with the yearly cost of a filter or pitcher.
This App compares costs from the numbers you enter. It does not judge water quality or replace your local water report or the filter instructions.
You enter every number yourself. The sources support the method and the limits. They do not produce a result for your specific case. Keep the original documents next to the sheet you build.
The App computes the worked example with your own numbers, in your browser.
APP 1
Compare the yearly cost of the bottles you buy with the yearly cost of a filter or pitcher.
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Open Bottled Water vs Filter Yearly CostThe App runs in this browser. It does not send or save entries. Copy, download, or print only when you choose.
This guide uses short, direct instructions as an ASD-STE100-style writing target. It is not a formal certification.
Companion App: Bottled Water vs Filter Yearly Cost. It runs in this browser and does not upload your entries.
This guide is edited for clarity and checked against the sources it links. It is not a substitute for official instructions or qualified advice. A linked source does not show that every person needs this guide.