hi. My baby girl is one month old..she was 2.9 kg at the time of birth....what should be the weight after one month.?

A. It can easily be 3400 g or it could be 3900 g again so so the basic way of calculating weight is a minimum gain of 500 g should be seen and maximum it can be seen up to 1 kg kilogram in a month so on that basis you can evaluate