A 3-month-old baby typically consumes about 24 to 32 ounces (approximately 700 to 950 ml) of breast milk per day, spread across 6 to 8 feedings. At each feeding, a baby usually drinks around 3 to 4 ounces (90 to 120 ml) of breast milk. Breastfed babies at this age often feed every 2 to 3 hours during the day, and the frequency may vary with longer stretches at night

. Feeding on demand is recommended, paying attention to hunger cues like rooting or sucking on fists, especially since many babies experience a growth spurt around 3 to 4 months and may want to eat more often or consume larger amounts

. In summary:

• Total breast milk per day: 24–32 ounces (700–950 ml)
• Number of feedings: 6–8 times per 24 hours
• Amount per feeding: about 3–4 ounces (90–120 ml)
• Feeding frequency: every 2 to 3 hours during the day, possibly longer intervals at night

These are general guidelines; individual babies may vary. If there are concerns about feeding amounts or growth, consulting a pediatrician is advisable