How Much Breast Milk to Put in a Bottle
Medically reviewed by Safi Ullah Khan
Medically reviewed by Safi Ullah Khan · Written by Muneeb Rana · Last updated 21 October 2026
Quick answer: How much breast milk to put in a bottle: breastfed babies aged 1-6 months often take about 3-4 oz (90-120 ml) per feed, and their daily intake stays fairly steady at roughly 25 oz (750 ml) on average. Divide daily intake by the number of feeds for a starting point, use paced feeding and adjust to your baby's cues.
TL;DR
- Start with 2-4 oz (60-120 ml) and adjust.
- Breast milk intake stays fairly flat from 1 to 6 months.
- Use paced feeding to avoid overfeeding.
Formula charts don't fit breastfed babies well, because breast milk intake doesn't keep climbing month by month the way formula intake does. Here's how to work out how much breast milk to put in a bottle.
Typical amounts
| Age | Per bottle (breast milk) |
|---|---|
| First week | 1-2 oz (30-60 ml) |
| Weeks 2-4 | 2-4 oz (60-120 ml) |
| 1-6 months | 3-5 oz (90-150 ml), daily intake roughly flat |
| 6-12 months | Similar or less as solids grow |
Lactation research cited by breastfeeding organisations puts average intake of exclusively breastfed babies between 1 and 6 months around 25 oz (750 ml) a day, with a wide normal range.
A quick way to estimate
- Count how many times your baby usually feeds in 24 hours (say 8).
- Divide an average daily intake (25 oz / 750 ml) by that number: about 3 oz (95 ml).
- Offer that amount, plus a small extra bottle ready if needed.
Convert units with the ounces to ml converter.
Paced bottle feeding
Hold the bottle more horizontally, let your baby draw the nipple in, and pause every few minutes. Paced feeding mimics the breast and helps prevent overfeeding. Stop at fullness cues.
Storing and warming
The AAP's rule of 4s: up to 4 hours at room temperature and 4 days in the fridge. Don't microwave breast milk. Leftover milk from a feed should be used within 2 hours. More in breast milk storage.
Tracking bottles of breast milk
Log bottles in oz or ml in Tot so whoever gives the bottle can see how much your baby took and when, and you can plan pumping.
Related: pumping log · how to track breastfeeding · 2-month-old feeding chart · baby feeding tracker
Download Tot free on the App Store or Google Play. Free with ads; optional Premium.
Sources
- AAP HealthyChildren.org: Tips for Freezing and Refrigerating Breast Milk: www.healthychildren.org (accessed 21 October 2026)
- NHS: Expressing breast milk: www.nhs.uk (accessed 21 October 2026)
- La Leche League International: Breastfeeding Information A to Z: llli.org (accessed 21 October 2026)
- CDC: How Much and How Often to Breastfeed: www.cdc.gov (accessed 21 October 2026)
Medical disclaimer:
Tot and this website give general information only. Feeding, sleep and growth ranges vary; always follow your pediatrician's advice. If your baby is unwell, contact your doctor or emergency services.
FAQ
How much breast milk should a 2-month-old drink from a bottle?
Often about 3-4 oz per feed, but follow your baby's cues.
Why does my baby drink more from a bottle?
Bottles flow faster. Paced feeding and a slow-flow nipple help.
Is breast milk intake the same as formula?
No. Formula intake tends to rise with weight; breast milk intake stays fairly steady from 1 to 6 months.
Can I mix breast milk from different days?
The AAP advises cooling fresh milk before adding it to already chilled milk. Use the oldest date.
How much should a nanny give per bottle?
Start with your estimate and have them log what your baby actually drinks.
Related guides
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