Mu is a unit of land area in China, which is equal to 60 square meters, about 666.67 square meters. Fifteen acres equals one hectare. The 60-square abbot was chosen because of the ancient counting method in China. At present, most counts are carried in units of ten, while in ancient times, the carry was carried in units of "60".

1, the formula for calculating the number of mu of land, 1 mu =60 square feet, 1 mu =666.667 square meters. We usually do not use this value to calculate the number of mu, which is too troublesome, but a simpler calculation method is needed.

2. The formula is: length (m) × width (m) ×0.00 15= mu. For example, the land area with a length of 200m and a width of 150m is 200 (m) × 150 (m )× 0.0015 = 30,000m2× 0.0015 = 45 (mu).

After confirming the correct land, solve the problem of wrong land area.

There is too much land: there is uncultivated land around the farmers' original farmland, so the landowners use the unowned environment of the land. Farming in the wasteland has caused more acres than the original land. The solution is that the state recognizes the ownerless wasteland occupied by farmers themselves when they own land rights.

Land where the landowner occupies the land adjacent to it. This situation is common in rural areas. The solution is to return to the occupied adjacent land; If farmers' friends underreport their own acres of land, they should make statistics in strict accordance with farmers' original acres of land when they own land rights.

If the number of acres at that time was small: if the area was small, there was land flowing out of the village, which could be supplemented; If the village can't adjust, it will not be adjusted, and it can only maintain the status quo.