Blue shark vs Great hammerhead: Size, Weight & Bite Force

QUICK VERDICT

Great hammerhead is about 1.61× longer by these reference values.

Great hammerhead uses a 6.1 m upper reference, compared with 3.8 m for Blue shark. Great hammerhead's weight reference is about 2.2× heavier.

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS

ABlue sharkabout 3.8 m / 12.5 ft

BGreat hammerheadreported to 6.1 m / 20 ft

REFAdult human1.8 m · about 80 kg

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.

MeasureBlue sharkGreat hammerhead

Length referenceabout 3.8 m / 12.5 ftreported to 6.1 m / 20 ft

Weight referencereported near 206 kg / 454 lbrecorded to about 450 kg / 991 lb

Bite forceNo dependable maximum foundUnknownNo dependable maximum foundUnknown

HabitatOpen temperate and tropical oceansTropical coastal and offshore waters

DietSmall fishes and squidRays, fish and smaller sharks

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Blue shark is represented by about 3.8 m / 12.5 ft; Great hammerhead by reported to 6.1 m / 20 ft. Upper records are uncommon; most adults are lighter. The comparison uses the largest reported length and a record mass.

Bite evidence

Blue shark: No comparable maximum is used. Great hammerhead: Comparative biomechanics exist, but a simple verified maximum is not established here.

Living versus extinct

Both species are living, but record-sized individuals are rare. These upper references should not be read as normal adult size.

Ecology changes the matchup

Its long fins and slender build matter more than raw bulk. Its wide head is a sensory platform, not just an unusual silhouette.

TRACE THE CLAIMS

Sources and limits.

Blue sharkFlorida Museum ↗Great hammerheadFlorida Museum ↗How we standardize comparisonsRead the methodology →