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The largest crocodile species lives in Australia. It's the famous Australian saltwater or estuarine crocodile, known as Crocodylus porosus Males get up to 23.5 inches in length and weigh up to a ton (900 Kg or 2000 pounds). Australian females run half this weight & length. 1250 pounds is the average weight of North American crocs but it may vary depending on diet and habits of the crocodile.
The range of this species once stretched northward throughout the Nile, as far north as the Nile delta. On average the Nile crocodile is between 4.1 metres (13 ft) to 5 metres (16 ft), weighing around 410 kg (900 lb). However, specimens measuring 6.1 metres (20 ft) in length and weighing 907 kg (2,000 lb) have been recorded. They have thick scaly skin that is heavily armored.