GN22566 Ð National Stadium Cut-and-paste conversions 70m = 230ft 330m = 1,080ft 220m = 720ft 117cm = 46in 30cm = 12in 7,400 sq. metres = 80,000 sq. feet 40,000 sq. metres = 430,000 sq. feet 50,000 sq.-metre = 540,000 sq.-foot