ballpark guestimate...how many days does one can of infant formula '' like enfamil'' last for feeding a baby ?

Figure a 12 ounce can is good for a couple of days for a newborn.

The other answer is right: it's going to depend on a lot of things:

1. Are you feeding exclusively formula or supplementing?

2. How old is the baby?

3. How often does the baby feed?

4. How much does the baby drink each time?

5. What size can are you using?

There's a reason why doctors say "Breast is best" and one reason is it's a lot cheaper.

FWIW, children cost about $100 a week each.

What size can?

And are you talking Powder? Ready to feed? Concentrate?

How old is the baby? Newborns will only eat a few ounces a day. Older babies need about a quart of formula a day or more.

I used a can a day when we used formula. Other moms will tell you a can will last a week. So - that means different size cans.

Depends on how much the baby drinks at each feeding.

There is no way to estimate. Cans come in different sizes. Babies take different amounts.