how fast could a t rex run

A Tyrannosaurus rex could likely run at speeds ranging roughly from 10 to 25 miles per hour, with some of the more detailed biomechanical studies suggesting a top speed closer to 18 mph. However, many recent studies tend to emphasize that T. rex probably used more of a fast walk or a slow run due to its massive body weight, and higher speeds might have risked injury to its legs. Some research has also suggested walking speeds around 3 mph based on tail movement analysis, but sprinting speeds of up to 25 mph are considered possible in short bursts. Overall, T. rex's speed was impressive compared to humans but not extremely fast compared to smaller, lighter dinosaurs.