Start with the season, not a universal rule
Enxovaly's presets change the proportion of pieces depending on the weather: summer favors short-sleeve bodysuits, while winter increases long sleeves, pants, sleepers and cardigans. The calculator below shows the numbers registered for NB and 0–3M and multiplies the base when there is more than one baby.
These quantities allow for clothes that are being worn or washed. Families who do laundry every day may need fewer items. Those who wash less often or live in a humid climate may prefer a few extras.