I have a 12 week old female hedgehog, and she weighs 280 grams right now (approximately 10 ounces). She should continue to grow until she is around 6 months old, but the females tend to be anywhere from 300-500 grams. Each state determines if hedgehogs are allowed. read more
Hedgehogs can grow to be anywhere from six to 14 inches long and weigh between 14 to 39 ounces. Their average body length varies from 5 to 12 inches, and their tails vary in length from 1 to 2 inches. read more
The size of a fully grown hedgehog will partly depend on its sex (males tend to be bigger - at least in the European Hedgehog), but will mainly depend on which species you have (there are 14 different species of hedgehog). read more