T. rex beside a child
Tyrannosaurus rex · 1,20 m
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How big would T. rex be beside your child?
Enter a height and compare it with more than 30 dinosaurs and prehistoric animals. You can also place two dinosaurs beside each other. Names and measurements stay in your browser.
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Understanding the result
Height and length tell different stories.
The figures are scaled by standing height. Many dinosaurs were much longer than they were tall because of their necks and tails, so each result also shows the estimated total length.
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Useful estimates, not exact measurements
Dinosaur size estimates can change when new fossils are found or specimens are interpreted differently. The tool uses a practical standing height for the visual scale and separately shows estimated total body length.
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Questions about dinosaur size
Why can height and length look so different?
Long necks and tails make many dinosaurs much longer than they were tall. The visual figures are scaled by standing height, while total length is listed separately.
Are the measurements exact?
No. They are rounded scientific estimates. Fossils are often incomplete, individuals varied in size, and reconstructions can change.
Does the tool save a child's name or height?
No. The comparison runs in the browser. The optional name and height are not sent to Peekasaurus.