Greenland shark vs Megalodon: Size, Weight & Bite Force

QUICK VERDICT

Megalodon is about 2.4× longer by these reference values.

Megalodon uses a 15.3 m upper reference, compared with 6.4 m for Greenland shark. Megalodon's weight reference is about 47× heavier.

ON THE SAME SCALE

Human. Bus. Whale.
Pick your reference.

RELATIVE LENGTH · 0–24 METERS

AGreenland sharkconfirmed to about 6.4 m / 21 ft

BMegalodonevidence-based upper estimate 14.1–15.3 m / 46–50 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.

MeasureGreenland sharkMegalodon

Length referenceconfirmed to about 6.4 m / 21 ftevidence-based upper estimate 14.1–15.3 m / 46–50 ft

Weight referencereported to about 1,023 kg / 2,255 lbmodeled reference around 48,000 kg / 53 tons

Bite forceNo reliable published estimateUnknownmodeled range about 108,514–182,201 NModeled

TimeCold North Atlantic and Arctic watersabout 20–3.6 million years ago

DietFish, carrion and marine mammalsLarge marine mammals, turtles and fishes

WHAT THE DATA CAN SAY

Size is not the whole animal.

Length and weight

Greenland shark is represented by confirmed to about 6.4 m / 21 ft; Megalodon by evidence-based upper estimate 14.1–15.3 m / 46–50 ft. Age and upper mass involve uncertainty; length is better documented. No complete skeleton exists; 15.3 m is an evidence-based maximum from museum specimens, not a tape measurement.

Bite evidence

Greenland shark: TuffShark found no defensible species-level bite-force estimate to display. 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

The age estimate is extraordinary; a dependable bite-force figure is not available. Nearly every whole-body number is reconstructed from teeth and comparisons with living sharks.

TRACE THE CLAIMS

Sources and limits.

Greenland sharkNOAA Ocean Service ↗MegalodonWroe et al. (2008) + Shimada et al. (2020) ↗How we standardize comparisonsRead the methodology →