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  1. Tyrannosaurus - Wikipedia

    The most complete specimen measures 12.3–12.4 m (40–41 ft) in length, but according to most modern estimates, Tyrannosaurus could have exceeded sizes of 13 m (43 ft) in length, 3.7–4 …

  2. How Big Was the Tyrannosaurus rex? They May Have Been Larger …

    Oct 25, 2025 · Based on the fossil record, T. rex reached lengths of up to about 40 feet (12 or 13 meters), a height of around 13 feet (four meters), and weighed as much as 7 tons.

  3. The Largest T. Rex Was Probably Much Bigger Than We Ever …

    Of all the Tyrannosaurus rex fossils we've found, it's statistically unlikely that any of them are the largest of their species to have lived. It's even difficult to gauge where they sit on the T. rex …

  4. Tyrannosaurus rex | Description, Dinosaur, & Facts | Britannica

    Dec 12, 2025 · In this position a large adult, weighing 4,000 to 7,000 kg (about 9,000 to 15,000 pounds), could measure more than 12 meters (about 39 feet) long.

  5. How Big Was the Giant T. Rex? Size, Strength, and Science

    Nov 28, 2025 · Standing in its characteristic horizontal posture, the animal would have measured around 3.7 to 4 meters (12 to 13 feet) tall at the hips. The most substantial evidence for this …

  6. 7 Questions About Tyrannosaurus rex | AMNH

    T. rex is estimated to have weighed between 11,000 and 15,500 pounds (5,000 and 7,000 kilograms) with skin and flesh on its huge bones. That's about as much as the largest African …

  7. How Big is a T-Rex? - Dimensions Guide

    The size of a T Rex or Tyrannosaurus Rex varied, but the largest were 15 ft tall and 40 ft long. A mature T Rex weighed over 16,000 lbs. Physical Characteristics of T Rex The head of a T Rex …

  8. How Big Was the Giant T-Rex? A Look at Its Immense Scale

    Jul 28, 2025 · The enormous size of T. rex was achieved through rapid growth, particularly during its adolescence. Studies indicate that T. rex had a maximal growth rate of about 2.1 kilograms …

  9. Tyrannosaurus - Natural History Museum

    Analysis of fossilised Tyrannosaurus dung show that it contained the bones of its prey. Hunter or scavenger? The Tyrannosaurus skull was over 1.5m (5 feet) long and the cavity that housed …

  10. T Rex Dinosaur Facts: Meet The Real Tyrannosaurus Rex

    Oct 11, 2021 · T rex, or Tyrannosaurus rex, is a species of carnivorous, theropod dinosaur that lived in what is now the western United States during the Late Cretaceous. With an estimated …