Enter your baby's age and current weight to calculate how much breast milk or formula they need per feed and per day. Based on paediatric nutrition guidelines.
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Breast milk changes in composition throughout each feed and throughout the day. Hindmilk (produced toward the end of a feed) contains up to 5x more fat than foremilk, which is why letting baby fully drain one breast before switching is important for healthy weight gain.
Paediatric guidelines scale milk intake relative to baby's body weight. A typical infant requires approximately 150ml of milk per kilogram of body weight each day. This requirement naturally caps around 900ml per day as solid foods are introduced starting at 6 months.
Newborn stomach capacity is very small (size of a cherry), expanding to hold 150-200ml by 6 months, which reduces feeding frequency.
Breastfed babies digest milk faster, leading to higher feed frequency than formula-fed babies, though daily volume is equivalent.
Solids are introduced at 6 months when digestive enzymes develop, complementing rather than replacing milk intake.
A healthy infant produces 6+ wet diapers daily, shows active alertness, and follows positive pediatric weight gain curves.
Monitor weight gain and wet diapers. A baby who is gaining weight along their growth curve and producing 6 to 8 wet diapers daily is receiving sufficient nutrition.
Infants have high metabolisms and small stomachs, meaning they empty their stomach contents within 2 hours, especially when breastfed.
Pediatric organizations recommend introducing solids around 6 months when baby shows signs of developmental readiness (sitting up, loss of tongue thrust).
Breast milk is the gold standard for antibodies and immune support, but modern formulas are scientifically advanced and provide excellent nutrition.