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The American is one of the larger crocodile species. Males can reach lengths of 6.1 m (20 ft), weighing up to 907 kg (2,000 lb). On average, mature males are more in the range of 4.1 m (13 ft) to 4.8 m (16 ft) in length weighing about 400 kg (880 lb). As with other crocodile species, females are smaller; rarely exceeding 3.8 m (12 ft) in length.
A nile crocodile ussualy grows to 3.5-6 meter (11.5-19.7 ft) in lenght, on average it reaches 4.6 meter (15 ft). The biggest ever was 6.7 m (22 ft) and weigth about 1300 kilo â¦(2900 lb), his name is Gustave. Only the saltwater crocodile can get bigger. Making the world better, one answer at a time.