0 – 2 months
150–180 ml/kg/day
Highest milk needs relative to weight. A 3.5 kg newborn lands around 525–630 ml (18–21 oz) daily across 8–12 feeds. The rhythm is the work.
The full newborn guideA feeding companion · est. 2026
How much milk does your baby actually need?
A calm, honest calculator built from published paediatric guidance. Enter weight, age, and feeds — get a daily and per-bottle range you can actually use at 3 a.m.
- Source
- AAP · CDC · WHO
- Privacy
- Runs locally
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The method
A formula parents can verify.
- 01
Weight × ml-per-kg-per-day = daily intake.
The first weeks: 150–180 ml/kg. By six months it eases to 120–150, then 100–120 through the first birthday.
- 02
Daily total ÷ feedings = per bottle.
Whatever rhythm works for you — eight feeds or twelve — divide and you have a per-bottle target.
- 03
Use the range, watch your baby.
Wet diapers, weight gain, and a contented baby tell you more than a single number ever will.
Trust & methodology
A calculator with a paper trail
We keep the math visible, the sources linked, and a correction path on every page. That's what we'd want as parents.
Last sitewide review
April 21, 2026
Maintained by
Baby Milk Calculator editorial team
Editorial policy
Who writes the site, how sources are chosen, how updates and corrections are handled.
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How we calculate
The intake ranges, unit conversions, and guardrails behind every result.
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Corrections & contact
Send a question or correction to support@milkcalculator.org.
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SourcesAmerican Academy of PediatricsCenters for Disease Control and PreventionWorld Health Organization
Specific calculators
Pick the one that matches your question.
Focused pages for the highest-intent feeding questions: formula, expressed breast milk, premature babies, weight-based intake.
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Formula Calculator
Use this formula milk calculator guide to estimate daily formula intake by weight, age, and feedings per day, with AAP and CDC safety notes.
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Breast Milk Calculator
Use this expressed breast milk calculator to estimate how much pumped milk to feed baby by weight, age, and feedings per day.
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Premature Baby Feeding
Understand why premature baby feeding calculator results need clinical guidance, corrected age, fortified milk, and NICU or pediatric follow-up.
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Milk by Weight
Use this baby milk intake calculator by weight in kg or pounds, then convert daily milk needs into per-feeding ounces and milliliters.
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By the month
A complete guide to baby milk intake, month by month.
Milk needs change fast in the first year. Your three-day-old and your six-month-old are working with different numbers — and your six-month-old's growing into solid food on top. Here's the short version, anchored to weight.
2 – 6 months
120–150 ml/kg/day
A 6 kg baby sits near 720–900 ml (24–30 oz). Feeds stretch out — usually 6–8 a day — and you start to see a pattern emerge.
Schedules by age6 – 12 months
100–120 ml/kg/day
Solids enter. Milk eases down to 800–960 ml (27–32 oz) for an 8 kg baby, but it stays the main nutrition source through the first birthday.
Starting solidsThe signals
6+ wet diapers · steady weight · soft stools
Numbers are guideposts. Wet diapers, weight on the curve, and a content baby after feeds tell you more than any ml total.
Full signal checklistCommon questions
Asked a lot.
Eight things parents type into Google at 2 a.m., answered without filler.
Newborns (0–2 months) typically need 150–180 ml of milk per kg of body weight per day. A 3.5 kg (7.7 lb) newborn would need roughly 525–630 ml (18–21 oz) daily across 8–12 feedings. The calculator gives you a personalised range based on your baby's exact weight.
Weigh your baby, pick the ml/kg/day for their age (0–2mo: 150–180 · 2–6mo: 120–150 · 6–12mo: 100–120), multiply weight by the rate, then divide by daily feedings for the per-bottle amount. The form above does the math instantly.
A 3-month-old usually takes 4–6 oz (120–180 ml) per feeding, with 5–6 feedings a day — about 24–32 oz (700–950 ml) total. Heavier babies sit at the top of that range. Enter your baby's weight above for a tailored number.
Yes. The intake volumes apply to both formula and expressed breast milk. Breastfed babies often feed a little more frequently with slightly smaller per-feed volumes, but the daily totals overlap.
Newborns: 8–12 feeds a day (every 2–3 hours). 2–3 months: usually 6–8. By 6 months: 5–6. Always read your baby's cues over the clock, and check in with your paediatrician for anything that feels off.
Treat the result as a range, not a quota. Six or more wet diapers a day, steady weight gain, and a content baby after feeds are stronger signals than hitting an exact ml number.
Recalculate every 2–4 weeks. If your baby drains bottles fast, wakes more at night, or weight gain slows on the growth chart, bump the daily total and reassess.
Use it only as a rough orientation. Preemies often need fortified milk and individualised volumes. Your neonatologist or paediatrician should set the actual targets.