How Much Aptamil Should a Baby Have at Each Age?

Aptamil Feeding Guide by Age: Start With the Tin

Aptamil, like other infant formulas, prints a feeding guide on the pack. It shows the water volume, the number of level scoops and a typical number of feeds per day for different ages. Stages and regional versions are not identical, so the guide on your tin is the one to follow for mixing and for the general pattern of feeds.

The chart below is not a replacement for that guide. It is a brand-neutral reference that helps you check whether the amounts look sensible for your baby's age and weight. The NHS and the American Academy of Pediatrics both describe formula amounts as a guide that varies from baby to baby.

How Much Aptamil Per Feed, by Age and Weight

These figures use 150 ml per kg per day as a starting point, divided across a typical number of feeds. A prepared bottle of any first infant formula made to the label is the same strength, so the volumes apply to Aptamil as they do to other brands.

Babies vary. Weights above are typical examples, not targets, and many babies settle somewhere between two rows. For a number tailored to your baby's weight, use the formula calculator.

Worked 150 ml/kg/day Example

Daily intake usually plateaus once a baby reaches around 900–960 ml (30–32 oz), even as weight keeps rising, so the calculation stops scaling in the same way after the first few months. For more on the maths, see the 150 ml/kg/day rule explained.

How Much Aptamil for a Newborn?

In the first days a newborn's stomach is small, and feeds are often only 30–60 ml (1–2 oz). Amounts build over the first one to two weeks as your baby wakes more and feeds more efficiently. Feed on cue, which for newborns usually means every 2–4 hours, and do not worry if one feed is smaller than the one before. For more detail, see our newborn feeding chart.

Mixing Aptamil Safely: Keep the Ratio Exact

Whatever amount your baby takes, mix powder to the tin's instructions. Extra water dilutes calories and nutrients; extra powder can put strain on a baby's kidneys. Powdered formula is not sterile, so follow your tin and health authority advice on water temperature, cooling and how long a made-up bottle can be kept. Our guides on water for formula and ready-to-feed vs powdered formula cover the options.

Reading Your Baby's Cues, Not Just the Chart

Responsive feeding means offering the bottle when your baby shows early hunger cues, such as rooting, bringing hands to the mouth or turning toward you, and stopping when they show fullness cues, such as turning away, slowing down or relaxing their hands. A baby who is gaining weight, producing plenty of wet and dirty nappies and seems content between feeds is generally getting enough. See signs your baby is eating enough.

Talk to your health visitor or pediatrician if your baby consistently refuses feeds, seems unusually sleepy at feeding times, is not gaining weight as expected, or if you are thinking of changing formula. This guide is general information, not individual medical advice.