East Asia

Mu (land unit)

China’s traditional farmland unit, now fixed at 1/15 hectare: about 666.67 m², or 0.165 acre. Also written 亩, 畝, Mou, Chinese acre.

1 mu = 666.6667 m² = 7,175.94 sq ft = 0.164737 acresUsed in: China

1 mu =
666.6667 m²
1 mu = 666.6667 m²
The value in every unit
UnitValue
Square meters (m²)666.6667 m²
Square feet (ft²)7,175.94 ft²
Square yards (yd²)797.3267 yd²
Acres (ac)0.164737 ac
Hectares (ha)0.0666667 ha
Mu1 mu

Mu in other units

m²sq ftacreshectares
666.66677,175.940.1647370.0666667
  • = 1/15 hectare = 60 square zhang

About the mu

When mainland China moved to legal metric units, the mu was the one traditional area unit it kept. It is defined as 60 square zhang, which makes it 1/15 hectare: about 666.67 m², 7,176 sq ft or 0.165 acre. Farm sizes, crop yields and land transfers in China are still widely reported in mu.

Because the definition is tied to the hectare, conversions are clean: 15 mu make a hectare and 1,500 mu make a square kilometer. The mu used in Hong Kong and Macau (about 761.4 m²) and the Taiwanese mu (about 99.17 m²) are different sizes and are not covered here.

Related measures

  • 15 mu = 1 hectare
  • 1,500 mu = 1 km²
  • 1 acre ≈ 6.07 mu

Quick table

MuSquare feetSquare metersAcres
17,175.94666.66670.164737
214,351.881,333.330.329474
535,879.73,333.330.823685
1071,759.46,666.671.6474
20143,518.8113,333.333.2947
50358,797.0133,333.338.2368
100717,594.0366,666.6716.4737

Sources

Spotted a value that’s wrong for your area, or a regional value we should add? Email support@landmeasure.app with a source.

Frequently asked questions

How many mu are in a hectare and in an acre?

Exactly 15 mu make a hectare. One acre is about 6.07 mu, and one mu is about 0.165 acre.

Is the mu the same in Hong Kong and Taiwan?

No. The mainland mu is 666.67 m²; the traditional mu in Hong Kong and Macau is about 761.4 m², and in Taiwan about 99.17 m².

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