Tyrannosaurus rex
Tyrannosaurus rex was a large, meat-eating dinosaur from the late Cretaceous period, recognised for its massive skull and powerful jaws.
Also known as: T. rex, T rex
How big is it?
12 m long
Also 39.37 ft
Representative adult length · representative reconstruction
Typical recorded range: 11 m to 13 m.
A little perspective
About the same scale as Badminton court.
Badminton court: A badminton court is the marked rectangular playing surface used for games of badminton.
Measurements, assumptions & sources +
Tyrannosaurus rex
A representative large adult Tyrannosaurus rex at 12 m and 8 tonnes. Fossil reconstruction and mass models vary; these are rounded comparison values.
Natural History Museum — Tyrannosaurus
The marked representative adult length is calibrated. Unmeasured illustration details are representative.
Badminton court
13.4 × 6.1 m playing surface. Excludes surrounding space.
WA Government — badminton dimensions
The marked length is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 12 m
For comparison, this page uses representative adult length. This is labelled representative reconstruction; the central value is useful for comparison, while real values or measurement solutions can vary. The recorded range is 11 m to 13 m.
A representative large adult Tyrannosaurus rex at 12 m and 8 tonnes. Fossil reconstruction and mass models vary; these are rounded comparison values.
The marked horizontal span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Tyrannosaurus rex dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 12 m | 11 m to 13 m | representative reconstruction | |
| 8 t | 6 t to 10 t | representative reconstruction |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · TransportDouble-decker bus11 mA double-decker bus is a passenger vehicle with two levels, used for public transport.
Around the same scale · Living thingsWhale shark10 mThe whale shark is the largest living fish and feeds by filtering plankton from the water.
Nearest higher value · Transport40-foot container12.19 mA 40-foot container is a large steel box commonly used for shipping goods internationally by sea, rail or road.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- Natural History Museum — TyrannosaurusLarge adults approached roughly 12 m; body-mass estimates depend on reconstruction.
There’s always another scale
Follow your curiosity.
Living thingsAfrican elephant3.3 mAn African elephant is a large plant-eating mammal recognised by its trunk, tusks and broad ears.TransportDouble-decker bus11 mA double-decker bus is a passenger vehicle with two levels, used for public transport.
SportBadminton court13.4 mA badminton court is the marked rectangular playing surface used for games of badminton.
TransportDragon boat12.49 mA dragon boat is a long, narrow racing vessel paddled by a team, often decorated with a dragon's head and tail for competitions.
SpaceApollo command and service module11 mThe Apollo command and service module was the main spacecraft section used by NASA's Apollo missions to transport astronauts between Earth and lunar orbit.
Everyday things100 m² home10 mA home is a dwelling where people live, providing shelter and a place for daily activities.
SportSquash court9.75 mA squash court is an enclosed room with four walls used for playing the sport of squash.
SpaceHubble Space Telescope13.2 mThe Hubble Space Telescope is an orbiting observatory launched by NASA to capture detailed images of astronomical objects.