How much milk should a baby drink?

A common formula-feeding guide is about 150 to 200 ml per kilogram of body weight per day, spread across feeds. Every baby differs, so follow hunger and fullness cues rather than a fixed number.

Does this work for breastfed babies?

Breastfed babies regulate their own intake at the breast, so a fixed millilitre amount does not apply. This calculator is a rough guide for formula feeding.

My baby wants more or less than this. Is that a problem?

Appetites vary day to day and with growth spurts. As long as your baby is having plenty of wet nappies and gaining weight, that is reassuring. Ask your health visitor or GP if you are worried.

How much milk should my baby drink? Calculator

Baby feeding amount calculator

Baby's weight

Unit

Feeds per day

A rough guide for formula feeding, worked out in your browser. Not medical advice.

What the numbers mean

The estimate uses a common formula-feeding guide of roughly 150 to 200 ml of milk per kilogram of body weight per day, then divides it by the number of feeds. It is a ballpark, not a prescription.

Follow the baby, not the number

Appetites move around with growth spurts and off days. A baby having plenty of wet nappies and gaining steadily is usually feeding well, whatever the exact millilitres. If you are worried about intake or weight, speak to your health visitor or GP.

Quick answer

This calculator estimates a rough daily formula amount from your baby's weight, using the common guide of about 150 to 200 ml per kg per day, then splits it across the feeds you choose. It runs in your browser. It is a guide for formula feeding only; breastfed babies self-regulate, and you should always follow your baby's cues and your health visitor or GP.

How to use it

Enter the weight. Type your baby's weight and choose kilograms or pounds.
Choose the number of feeds. Pick roughly how many feeds a day, and the tool splits the daily total per feed.
Read the range. You get a daily range and a per-feed range. Use it as a starting point, not a target to force.

Frequently asked questions

How much milk should a baby drink?: A common formula-feeding guide is about 150 to 200 ml per kilogram of body weight per day, spread across feeds. Every baby differs, so follow hunger and fullness cues rather than a fixed number.
Does this work for breastfed babies?: Breastfed babies regulate their own intake at the breast, so a fixed millilitre amount does not apply. This calculator is a rough guide for formula feeding.
My baby wants more or less than this. Is that a problem?: Appetites vary day to day and with growth spurts. As long as your baby is having plenty of wet nappies and gaining weight, that is reassuring. Ask your health visitor or GP if you are worried.