How many square meters is one mu? How many Mu is 132.3 square meters

How many square meters is one mu? How many Mu is 132.3 square meters

To be exact, the area of one mu is 2000 / 3 square meters, that is 666.666.square meters
The number of mu of 132.3 is as follows:
132.3 / (20000 / 3) = 0.19845 mu