What is the length of a rugby pitch

A typical length is 100m for the field of play plus the depth of the ingoal areas at both ends of the field, say 10m each - total 120m. The width is typically 70m so the area = 120m x 70m = 8400 sq m. A full size pitch (22m ingoal) would be 144m x 70m = 10080 sq m.