How much formula is your baby eating!?

Kelley • Hi I`m Kelley I`m happily married to the love of my life. I`m so blessed I`m a Mommy to the Sweetest Baby Girl💕🙏🏻
My three month old is eating 4oz to 4 1/2 and  I dont know if that's enough or not how much are you giving your babies if formula fed she's eating very 3-4 hours