Who
Xu He
What
36,100 square metre(s)
Where
China Cangzhou
When

The largest QR code is 36,100 m² (388,577 ft²) and was achieved by Xu He (China) in Cangzhou, Hebei, China on 15 April 2015.

The QR code was created in a wheat field. The length of each side is 190 metres.