Baby Formula Amount Calculator
Estimate how much formula a baby needs per day and per feed from their weight and age — using the common 2.5 oz per pound guideline.
For general information only — not medical advice. Results are estimates; talk to a doctor or qualified health professional about your own health.
How to use
- 1Enter your baby's weight and age in months.
- 2See the daily amount and a per-feed estimate for the typical number of feeds.
How it's calculated
Daily formula ≈ 2.5 oz per pound of body weight (about 150 ml per kg), up to about 32 oz (960 ml) a day. Feeds per day are typical ranges by age.
Frequently asked questions
Should I follow the calculator exactly?
No — follow your baby's hunger and fullness cues. Babies' needs vary day to day.
When does formula intake drop?
After solids are introduced (around 6 months) formula gradually decreases, though it remains the main source of nutrition until 12 months.
Is more than 32 oz a day a problem?
Consistently more than about 32 oz may mean the baby needs a pediatrician check-in, or is ready for solids.