Baby Formula Feeding Calculator
Estimate how much formula or expressed milk a baby needs per feed and per day.
About the Baby Formula Feeding Calculator
The American Academy of Pediatrics' guide is about 2½ ounces of formula per pound of body weight per day (about 150 ml per kg), up to a maximum of about 32 ounces (960 ml). Newborns feed 8–12 times a day; by 2 months most feed every 3–4 hours. Breastfed babies regulate their own intake.
The formula
Daily milk ≈ 2.5 oz × weight (lb), max 32 oz
Worked example
Example: Milk per day = 30 oz (887 ml)
- Inputs: Units: lb / in; Baby's weight: 12 kg or lb; Age: 2 months; Feeds per day: 8.
- Formula: Daily milk ≈ 2.5 oz × weight (lb), max 32 oz
- Result: Milk per day = 30 oz (887 ml)
Questions people ask
How do I know my baby is getting enough?
Steady weight gain and about 6+ wet nappies a day after the first week.
Should I wake a baby to feed?
Newborns sometimes need waking; ask your paediatrician.