Tap Water vs. Bottled Water Calculator

This calculator helps you compare the costs of drinking tap water versus bottled water, considering the price of tap water and the cost of bottled water.

Tap Water vs. Bottled Water Calculator gives you a faster way to work through practical calculation scenarios without rebuilding the same calculation from scratch every time. Start with Cost of Tap Water per Gallon ($), Cost of Bottled Water per Bottle ($), Volume of Bottled Water per Bottle (fl oz), and Bottles of Water Consumed Daily and use the live outputs to estimate Cost of Bottled Water per Gallon ($), Daily Cost of Bottled Water ($), and Daily Cost of Tap Water ($) in one pass. This page is built to help you compare scenarios quickly, validate rough assumptions, and move into a related calculator when you need a second angle on the same problem.