Blue shark vs Greenland shark: Size, Weight & Bite Force

QUICK VERDICT

Greenland shark is about 1.68× longer by these reference values.

Greenland shark uses a 6.4 m upper reference, compared with 3.8 m for Blue shark. Greenland shark's weight reference is about 5.0× heavier.

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS

ABlue sharkabout 3.8 m / 12.5 ft

BGreenland sharkconfirmed to about 6.4 m / 21 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 sharkGreenland shark

Length referenceabout 3.8 m / 12.5 ftconfirmed to about 6.4 m / 21 ft

Weight referencereported near 206 kg / 454 lbreported to about 1,023 kg / 2,255 lb

Bite forceNo dependable maximum foundUnknownNo reliable published estimateUnknown

HabitatOpen temperate and tropical oceansCold North Atlantic and Arctic waters

DietSmall fishes and squidFish, carrion and marine mammals

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; Greenland shark by confirmed to about 6.4 m / 21 ft. Upper records are uncommon; most adults are lighter. Age and upper mass involve uncertainty; length is better documented.

Bite evidence

Blue shark: No comparable maximum is used. Greenland shark: TuffShark found no defensible species-level bite-force estimate to display.

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. The age estimate is extraordinary; a dependable bite-force figure is not available.

TRACE THE CLAIMS

Sources and limits.

Blue sharkFlorida Museum ↗Greenland sharkNOAA Ocean Service ↗How we standardize comparisonsRead the methodology →