OunceChartOunces, sizes and milestones for the exact week or month.

OunceChart

Ounces, sizes and milestones for the exact week or month.

SectionsLatest
Feeding AmountsOunces per feed and per day, by weight and by month.343
Clothing & Gear SizesWhat size fits at each age, and how brands differ.6
Growth PercentilesWeight and length percentiles from WHO and CDC tables.2838
Car Seats & LimitsHeight and weight limits, and when each stage ends.6
  1. Bottle Feeding by Age — Fewer Feeds, Bigger BottlesFeeding Amounts · 3 min read

    Parents expect the ounces to keep rising all year. They do not — the total plateaus around four months and the schedule consolidates instead.

  2. Feeding a Six-Month-Old — Milk First, Solids Around ItFeeding Amounts · 3 min read

    A first taste of solids is a teaspoon, not a bowl. Milk is doing almost all of the work for several more months.

  3. When to Move Up a Size — The Feet and the Shoulders Go FirstClothing & Gear Sizes · 3 min read

    A sleepsuit that fits everywhere except the feet is a sleepsuit that has been outgrown, and it happens weeks before the body looks tight.

  4. Percentiles and Spurts — The Curve Matters, the Number Does NotGrowth Percentiles · 3 min read

    Parents read the percentile as a score. It is a position in a distribution, and half of all healthy babies are below the fiftieth by definition.

  5. How Many Ounces Should a 3-Month-Old Eat? 4–6 Per Feed, 24–32 a DayFeeding Amounts · 3 min read

    Age gets you a starting range. Weight gets you the actual number, and the two disagree often enough that it is worth knowing which one to trust.

  6. Weight Percentile for a 6-Month-Old: The WHO Table, and Why the Number Matters Less Than the LineGrowth Percentiles · 3 min read

    The 10th percentile is not a problem and the 90th is not an achievement. What a paediatrician actually reads is the direction of travel.

  7. What Size Clothes for a 9-Month-Old? Usually 9–12M, and Why the Label Is a Weight RangeClothing & Gear Sizes · 3 min read

    Baby clothing labels look like ages and behave like weight ranges. A 9-month-old wears anything from 6M to 18M depending on the child and the brand.

  8. When to Switch to a Forward-Facing Car Seat: The Limit on Your Seat, Not the BirthdayCar Seats & Limits · 3 min read

    There is no age at which a child should be turned around. There is a pair of numbers printed on the side of your seat, and they are the whole answer.

  9. How Many Ounces Should a Newborn Drink? 1–3 Per Feed, 8–12 Times a DayFeeding Amounts · 3 min read

    A newborn's stomach holds about a teaspoon on day one and an egg by day ten. That is why the first fortnight has its own numbers.

  10. What Size Diaper for a 3-Month-Old? Usually Size 2, Sometimes 1 or 3Clothing & Gear Sizes · 3 min read

    Nappy boxes print an age nowhere and a weight range everywhere. A three-month-old is usually in size 2, and the box will tell you when it is not.

  11. Baby Weight Percentile by Month: WHO Tables for the First YearGrowth Percentiles · 3 min read

    The full month-by-month table for the first year. The number it gives you is the least important thing on the page.

  12. When Can a Baby Have Water? Not Before 6 Months, and Only Sips Until 12Feeding Amounts · 3 min read

    Water before six months is not merely unnecessary — it is unsafe, and the reason is a kidney that cannot yet dilute what it is given.

  13. When to Start Solids: Around 6 Months, and Four Signs That Say ReadyFeeding Amounts · 3 min read

    Six months is the guidance, but the date is the weaker signal. Four physical signs say more, and a baby can hit them a few weeks either side.

Formula amount by weight and age

336 calculations · Feeding Amounts · browse all

Baby weight percentile by weight, age and sex

2,832 calculations · Growth Percentiles · browse all