This morning I found a bottled water cost calculator on the New American Dream website. It enables you to calculate how much money you waste buying bottled water in a year. It's very simple to use. First, you input the number of 16oz bottles of water you drink in a year, then the price of your tap water per gallon, and finally your average bottled water cost. If you don't know your tap water cost, it's safe to assume it's around $0.002/gallon.
The results are startling! If you drink one bottle of water per day and pay $1.50 for it each time, you are spending an extra $550 on water! Even if you buy your bottled water very cheaply most of the time, you will still be wasting over $150 each year. The $10-15 investment in a high quality stainless water bottle seems like a bargain by comparison!
On top of the cost savings you will achieve by using a refillable bottle, there are obvious environmental benefits as well. The calculator also estimates the impact of your bottled water habit on the planet. For the one-bottle-a-day person, an extra 114 gallons of water, 37 megajoules of energy, and 9 gallons of oil will be wasted as well as 68 pounds of CO2 generated.
If you'd like to reduce your impact and fatten your wallet, check out Back2Tap for your best value in high quality stainless steel water bottles.