🍼 Baby Feeding Calculator
Turn your baby's weight and age into a daily formula plan — the total for the day and the amount per feed, in ounces and millilitres — so bottle time is one less thing to guess at.
🍼 Daily formula
Estimated from about 2.5 oz of formula per pound of body weight per day. This is a general educational estimate, NOT medical advice — breastfed babies self-regulate and every baby differs, so always follow your pediatrician or doctor.
A starting point, not a target
The 2.5-ounces-per-pound rule gives a sensible ballpark for a formula-fed baby, but appetite swings day to day and during growth spurts. Watch your baby, not just the bottle: steady weight gain, plenty of wet nappies, and a content baby after feeds matter more than hitting an exact number.
Pair this with the Growth Tracker to see how weight is tracking over the first two years, and let your pediatrician fine-tune amounts at each check-up.
❓ Frequently Asked Questions
How much formula does my baby need?
A common rule of thumb for formula-fed babies is about 2.5 fluid ounces per pound of body weight per day. So a 10-pound baby needs roughly 25 ounces across the day. Most babies level off at around 32 ounces a day before solids begin, which is why the calculator caps the daily total there.
How do I split it across feeds?
Divide the daily total by the number of feeds. The calculator does this for you and shows the amount per feed in both ounces and millilitres. Younger babies feed little and often, while older babies take larger amounts less frequently.
Does this work for breastfed babies?
Not directly. Breastfed babies self-regulate their intake at the breast, so there is no bottle amount to measure. The 2.5 oz per pound figure is a guide for formula feeding; if you pump and bottle-feed, use it only as a rough starting point.
What happens when solids start?
Solids usually begin around 6 months and gradually replace some milk, so total formula intake tends to fall from then on. The calculator flags this once you enter an age of 6 months or more.
Is this a substitute for medical advice?
No. These are general educational estimates only — NOT medical advice; always consult your pediatrician or doctor. Premature, low-weight, or special-needs babies follow tailored feeding plans set by their care team.