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Are water filters worth it?

Tell us what bottled water you buy. Your estimate updates as you edit, and any missing costs are shown.

Question 1 of 6

What do you buy?

Your answers · tap to change
Your habit, in a few wordsTap anything underlined to change it

I buy a at each.24 bottles of 16.9 fl oz

A filter would replace .

I’m considering getting .

Your answer updates as you type

What we’ve got Read from your sentence

Your entries and any missing costs.

1 of 4 known
  • HabitWhat you buyNot enteredRead from your sentence
  • What you payPer itemNot enteredNeeded for any money figure
  • ShareWhat a filter replacesAll of itRead from your sentence
  • The filterWhat you’d buyNone chosen yetChoose one to see a payback

How it plays out

Same numbers as your answer, over five years

Add the missing information in your sentence to see the available chart and bottle estimates.

  • Five years, flat pricesSixty months ahead at today’s prices. Nothing inflated, nothing discounted.
  • Only what you’d replaceThe payback counts only the share a filter would replace. A cooler rental you keep is the same either way.
  • Every price has a sourceRecorded prices show their day and retailer. Yours are labeled as yours.
  • Buying a new system later isn’t countedUpkeep is counted; buying a whole new system later isn’t.

Payback is one question. The full cost to own is the next.

See the cost to own

WaterDecoder · Bottled Water Switch

Worked out 28 Oct 2026

Tell us how much bottled water you buy, and what you pay for it.

“. A filter would replace all of it. No filter chosen yet.”

Five years at the prices shown. Payback compares the spending you would avoid with the filter’s purchase, installation and running costs.

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