The male crocodile usually measure from 11.5 to 16 feet long (3.5 to 5 meters), but very old, mature ones can grow to 18 ft (5.5 m) or more.Males usually weigh about 1100 lbs(500 kg),but very large & old specimens can reach up to 2000 lbs (909 kg). The largest accurately measured male was shot near Mwanza, Tanzania and measured 6.45 m (21.3 ft) and weighed approximately 1,090 kg (2,400 lb).
Biggest: 21.3 feet long was shot near Mwanza, Tanzania.
Biggest as of now : Gustav approximately 20 feet long.
An adult male saltwater crocodile's weight is 880 to 3,000 pounds (400-1,360 kg) and length is normally 4 to 5.1 metres (13-17 ft), though very old
males can be 6 metres (20 ft) or more. This species has the greatest sexual dimorphism of any modern crocodilian, with females being much smaller than males.
Typical female body lengths in the range of 2.1 to 3.5 metres (6.9-11 ft).The largest female on record measured about 4.2 metres (14 ft).The mean weight of the
species as a whole is roughly 450 kilograms (990 lb).
Biggest : 28 feet long , shot in Australia in 1957
Biggest as of now : 23 feet long Saltwater Croc in Orrisa (Bhitarkanika Park)