Formula Feeding Calculator
Enter your baby's age (and optionally weight) to see AAP-recommended formula amounts, feeding frequency, and a sample daily schedule.
Personalizes the amount (≈2.5 oz per lb per day)
Enter your baby's age to get started
We'll show personalized amounts and a sample schedule instantly
Based on AAP and CDC guidelines and works for any infant formula (Aptamil, Enfamil, Similac, and others). Every baby is different, so always consult your pediatrician for personalized advice.
Common Questions
- How do I calculate how much formula my baby needs?
- A common guideline is about 2.5 ounces per pound of body weight per day, capping around 32 ounces. For example, a 12-pound baby might need about 30 ounces per day. Your pediatrician can recommend the right amount for your baby's specific needs.
- How long is prepared formula good for?
- General CDC guidance is that prepared formula can be kept at room temperature for up to 2 hours (less in warm environments). Once a baby starts drinking from a bottle, use it within 1 hour. Refrigerated prepared formula should be used within 24 hours. Follow the instructions on your specific formula brand.
- Can you mix breast milk and formula?
- In most cases, yes. Prepare formula with water first per package instructions, then add breast milk. Discuss with your pediatrician if your baby has any dietary sensitivities or special feeding needs.
- Does this work for Aptamil, Enfamil, Similac, and other brands?
- Yes. The amounts are based on your baby's age and weight using AAP and CDC guidance, so they apply to any standard infant formula: Aptamil, Enfamil, Similac, Kendamil, store brands, and others. Always follow the scoop-to-water ratio printed on your specific tin, as that's what determines the final concentration.
For educational purposes only, not a substitute for professional medical advice. Always consult your pediatrician with questions about your child's health.
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