What is the average cost of a month's worth of formula for a 6-month old baby who is bottle-fed?

It really depends on which brands of products you choose to use. If you go with the national name brands, it's going to cost a whole lot more than if you choose your store brands. I don't know what exact prices are anymore, but if you can get to a Walmart, their brand, Parent's Choice is an Excellent option, especially when it comes to their infant formula. If you're concerned about nutritional content, don't be. ALL infant formula manufacturers are strictly regulated by the FDA to create their infant formulas nutritionally equal. So whether you pay $30 per can or $12 per can, you're paying for essentially the same thing, with a different label. Check out the Savings Calculator on the Parent's Choice Website to see how much money you could save with a Store Brand! You can save up to 50% over the name brands just by going with a Store Brand!