Baby Formula Calculator
Estimate daily infant formula volume, per-feeding amount, and feeding frequency by age and weight.
How Much Formula Does My Baby Need?
This calculator estimates daily infant formula volume, per-feeding amount, and feeding frequency based on age and weight. Guidelines follow common pediatric recommendations used in Australia and the US. For related tools, see the Baby Age Calculator and Adjusted Age Calculator.
Daily Volume by Age
Recommended daily intake is expressed in ml per kg of body weight: 30–60 ml/kg for days 1–4, 150 ml/kg from day 5 to 3 months, 120 ml/kg from 3–6 months, and 100 ml/kg from 6–12 months. Per-feeding volume is the daily total divided by the expected number of feedings for that age.
Feeding Frequency
Newborns typically feed 8–12 times daily, decreasing to about 6–8 times by one month and 3–4 times by 10–12 months. Every baby is different—use hunger and satiety cues alongside these estimates and consult your pediatrician for personalized advice.
Frequently Asked Questions
How much formula does a newborn need?
In the first four days, newborns need about 30–60 ml per kg per day, often fed every 2–3 hours. From day 5 onward, intake typically rises to about 150 ml per kg daily.
Can I use pounds and months?
Yes. Enter weight in kg or lb and age in days or months. The calculator converts units automatically before applying age- and weight-based guidelines.
How do I know if my baby is getting enough?
Signs include steady weight gain, 5–6 wet diapers daily after the first week, and contentment after feeds. Contact your pediatrician if intake seems consistently too low or too high.
Should I wake my baby to feed?
Newborns often need on-demand feeding, including overnight. As babies grow, longer sleep stretches become more common. Follow your pediatrician's guidance for your child's age and health.
Is this calculator a substitute for medical advice?
No. This tool provides general estimates only. Premature infants, low birth weight babies, and those with medical conditions need individualized feeding plans from a healthcare provider.
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