A 265/50R14 tire is 24.4 inches (621 mm) tall and 10.4 inches wide. The sidewall is 50% of the width, 5.2 inches, on a 14-inch wheel, and the tire turns about 825 times per mile.
In flotation terms that is about 24.4x10.4R14. People often call it a 24-inch tire.