How much formula milk is required for my 9.5 kg baby, per feed?

If you are able to breastfeed your baby then don't go for formula milk as your baby is overweight and formula feed baby gain more weight compare to breastfeed baby.
For some reason,if you are not able to breastfeed baby then visit to gynecologist for better lactation and Dr will prescribed formula milk accordingly

My baby is 4th month, his weight is 9.5 kg. He eat brest milk. How much formula milk is required for him?Because i am joining school.

Don't go for formula milk as baby's weight is on higher side.
You can express your milk and store it and ask someone to give it to baby.

Thanks