The biggest spider in the world is the Goliath birdeater (Theraphosa blondi), which is a species of tarantula. It can reach up to 11 inches in length and weigh up to 6 ounces, which is big enough to cover a dinner plate. The Goliath birdeater is the largest spider by body mass (up to 175g) and by body length (13cm) . However, the giant huntsman spider (Heteropoda maxima) is the largest spider by leg span, measuring up to 12 inches. Other large spider species include the Brazilian salmon pink bird-eater (Lasiodora parahybana), the West African Hercules baboon spider (Hysterocrates hercules), and the face-size tarantula (Poecilotheria rajaei) .