Spinosaurus · T. rex
Spinosaurus vs. T. rex: which was bigger?
Spinosaurus is 1.5 m longer; T. rex is about 1 tonne heavier.
Open comparison ↗Direct size matchups
Each page answers one search question with its own verdict, measurements, human-scale explanation, evidence caveat and interactive scene.
Priority comparisons
Lengths share a single axis. Mass, fossil certainty and whether the animals ever overlapped are explained separately.
Spinosaurus · T. rex
Spinosaurus is 1.5 m longer; T. rex is about 1 tonne heavier.
Open comparison ↗Megalodon · Blue Whale
Blue Whale is 15 m longer and about 100 tonnes heavier.
Open comparison ↗T. rex · Human
T. rex is 10.8 m longer than the 1.7 m reference height.
Open comparison ↗Blue Whale · Human
Blue Whale is 31.3 m longer than the human reference height.
Open comparison ↗Argentinosaurus · Human
Argentinosaurus is 33.3 m longer than the human reference height.
Open comparison ↗Mosasaurus · Megalodon
Megalodon is 5 m longer in the conservative display.
Open comparison ↗Argentinosaurus · Blue Whale
Argentinosaurus is 2 m longer; Blue Whale is about 80 tonnes heavier.
Open comparison ↗T. rex · Giganotosaurus
Giganotosaurus is 0.5 m longer; T. rex is about 1.2 tonnes heavier.
Open comparison ↗Titanoboa · Anaconda
Titanoboa is 4 m longer and about five times heavier.
Open comparison ↗Spinosaurus · Giganotosaurus
Spinosaurus is 1 m longer; displayed masses differ by only 0.2 tonnes.
Open comparison ↗