Baby Formula Calculator

Your details

Current weight of your baby. Weigh before a feeding for best accuracy.
lb
Age of your baby. Use weeks for newborns under 2 months.
weeks
Weight of the dry powder canister you buy. Standard canisters are 20-38 oz; "club" sizes run 40-52 oz. Check the label.
oz dry powder
Retail price of one canister including any tax.
USD
Most standard formulas yield about 6 oz of prepared liquid per 1 oz of dry powder (check the mixing instructions on the can).
oz prepared per oz powder
Total per dayWithin guideline range
23oz

Total formula volume recommended over 24 hours

Per feeding2.9oz
Feedings per day8
Hours between feedings3hr
Monthly formula volume690oz
Canisters per month3.6
Monthly cost136.6USD
Daily total (oz)23
Per feeding (oz)2.9
Monthly cost (USD)136.6

Your baby needs about 23.0 oz of formula per day.

  • Offer about 2.9 oz at each of the 8 feedings spread across the day (roughly every 3.0 hours).
  • Babies under 3 months typically need 2.5 oz per pound of body weight per day, but appetite varies. Watch for hunger and fullness cues rather than finishing every bottle.
  • At your entered price and canister size, expect to spend about $136.60 on formula this month.

Next stepThese are guideline estimates. Your pediatrician can adjust the amount if your baby is gaining weight too fast or too slowly.

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