The megalodon was an enormous prehistoric shark, with size estimates varying based on different scientific methods and fossil evidence. Its maximum total length is generally estimated to range from about 14.2 meters (47 feet) up to 24.3 meters (80 feet), depending on the study and the assumptions about its body shape

. More specific estimates include:

• Mature males possibly ranged from 10.5 to 14.3 meters (34 to 47 feet), and mature females from 13.3 to 17 meters (44 to 56 feet)

• A 2015 study analyzing 544 teeth suggested a modal length of about 10.5 meters (34 feet), with individuals ranging from juveniles at 2.2 meters (7.2 feet) to adults up to 17.9 meters (58.7 feet)

• Some research indicates an average size around 14 to 15 meters (46 to 49 feet), with larger individuals reaching 18 to 20 meters (59 to 65 feet)

• The largest estimates, considering a sleeker body shape, suggest lengths up to 24.3 meters (80 feet) and weights over 90 metric tons (100 tons)

In terms of weight, estimates for large megalodons range from about 30 metric tons (66,000 pounds) up to over 100 metric tons (114 tons), with a 16-meter individual possibly weighing around 48 metric tons (53 tons)

. To put this in perspective, megalodon was roughly 2 to 4 times longer than the largest great white sharks of today, which average around 6 meters (20 feet)

. In summary, megalodon was likely the largest predatory shark ever, with lengths commonly estimated between 14 and 20 meters (46 to 65 feet), and exceptional individuals possibly reaching up to 24 meters (80 feet) in length. Its massive size made it one of the largest fish to have ever lived