Robert Irwin's height is reported with some variation across sources. The most reliable and recent information states that he is 5 feet 11 inches (182 cm or 1.82 m) tall
. However, some other sources list his height as 5 feet 7 inches (170 cm) or 5 feet 8 inches (175 cm)
. Given the latest detailed profile, 5 feet 11 inches (182 cm) is the most accurate and up-to-date measurement for Robert Irwin's height.