what is the size of all penguins
Size. The largest, still living species is the emperor penguin, measuring 120 cm and the smallest is the fairy penguin, only 30 cm tall. Also is known that there is a small difference in size and weight between the sexes, where the females are the weaker (smaller and a bit lighter) sex.
The smallest penguin species is the little blue penguin (Eudyptula minor), also known as the fairy penguin, which stands around 40 cm (16 in) tall and weighs 1 kg (2.2 lb).