Hi! Usually you can take 150ml x baby weight to get a bit of a gauge, and there is also recommended intake on formula milk tin. but I have to say follow your baby cues. My baby is drinking constantly less than "recommended" on the milk tins also, but in the 50-75th percentile for height weight and head circumference. 4.5 months atm! I use a baby tracker so I looked back and this is how my baby drank: 1 month old - 600+ ml 2 month old - 750-800ml 3 month old - 800-850ml 4 month old - 850-900ml
my child weight is 3.9 ( last measure) she took 120ml per feeding