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Baby Feeding Calculator

Daily milk intake by age and weight.

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kg
months
feeds

Typical range; newborns feed more often.

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Daily milk intake

750 mL

≈ 150 mL/kg × 5.0 kg

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Per feed

94 mL

8 feeds/day

Volume

25.4 fl oz

approx

Guideline

150 mL/kg/day

by age band

Intake vs weight

Intake vs weight
ItemValue
Daily intake750 mL
Per feed94 mL

A widely used rule of thumb is that babies need roughly 150 mL of milk per kilogram of body weight per day in the first six months, a little more for newborns and a little less as solids take over. Dividing the daily total by the number of feeds gives a per-feed amount. These are starting points — babies self-regulate, and hunger or fullness are the real signals to follow.

Recommendations

  • Let your baby feed on demand; the numbers are a guide, not a quota.
  • Watch the diapers and weight trend as the real signs intake is adequate.
  • Aim to increase amounts gradually rather than forcing a target.

Watch out

  • Every baby differs — appetite, growth spurts and illness all change intake day to day.
  • This is informational. Feeding concerns or poor weight gain warrant a pediatrician's advice.

Pro tips

  • Growth spurts (often around 3 weeks, 6 weeks, 3 and 6 months) temporarily boost demand — that's normal.
  • If bottle feeding expressed milk, pace the feed and use a slow-flow nipple to mimic breastfeeding.

Was this calculator useful?

How much milk a baby should take is one of the most common new-parent questions, and the answer is reassuringly simple: it scales with weight, and babies are good at managing it themselves.

The weight-based rule

Early-infant intake tracks body weight at roughly 150 mL/kg/day, slightly higher in the newborn weeks and lower once solids begin. Because the rule scales with weight, it holds up as the baby grows.

Feeds, not just totals

The daily total gets divided across feeds, and the number of feeds falls as the baby grows — newborns may take 8–12 small feeds, older infants fewer, larger ones. The per-feed number follows from both.

Reading the real signals

Growth spurts raise demand temporarily, and appetite varies daily. Weight trend and wet-diaper counts are the objective signs of adequate intake; the numbers here are a baseline to compare against, not a target to force.

Frequently asked questions

A common guideline is about 150 mL per kg of body weight per day for babies under six months. A 5 kg baby would need roughly 750 mL across the day.

Divide the daily total by the number of feeds. At 8 feeds a day, a 750 mL daily intake is about 94 mL per feed.

Babies regulate their own intake well. Steady weight gain and regular wet diapers are the best signs everything is on track — let appetite lead.

Sources

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