Megalodon is about 2.5× longer by these reference values.
Megalodon uses a 15.3 m upper reference, compared with 6.1 m for Great hammerhead. Megalodon's weight reference is about 107× heavier.
ON THE SAME SCALE
Human. Bus. Whale.
Pick your reference.
Length bars use upper comparison values and do not show body depth, tail proportion or typical adult size. A long thresher tail, for example, does not equal whale-shark body mass.
THE NUMBERS
Side by side.
WHAT THE DATA CAN SAY
Size is not the whole animal.
Length and weight
Great hammerhead is represented by reported to 6.1 m / 20 ft; Megalodon by evidence-based upper estimate 14.1–15.3 m / 46–50 ft. The comparison uses the largest reported length and a record mass. No complete skeleton exists; 15.3 m is an evidence-based maximum from museum specimens, not a tape measurement.
Bite evidence
Great hammerhead: Comparative biomechanics exist, but a simple verified maximum is not established here. Megalodon: Finite-element scaling produced a range, not a directly measured bite.
Living versus extinct
At least one animal is known from fossils. Fossil length, weight and bite estimates depend on which living analogues and scaling equations researchers choose.
Ecology changes the matchup
Its wide head is a sensory platform, not just an unusual silhouette. Nearly every whole-body number is reconstructed from teeth and comparisons with living sharks.
TRACE THE CLAIMS