One mu is about 0.1647 acre, and one acre is about 6.07 mu. Mainland China defines the mu as exactly 1/15 hectare, about 666.67 m², which makes 15 mu equal to one hectare and 100 mu about 16.47 acres. The factor to acres is not round because the mu is tied to the metric hectare and the acre to the foot.
Formula
Mu to Acres conversion table
| Mu | Acres |
|---|---|
| 0.25 mu | 0.0411842 ac |
| 0.5 mu | 0.0823685 ac |
| 1 mu | 0.164737 ac |
| 2 mu | 0.329474 ac |
| 3 mu | 0.494211 ac |
| 4 mu | 0.658948 ac |
| 5 mu | 0.823685 ac |
| 6 mu | 0.988422 ac |
| 7 mu | 1.1532 ac |
| 8 mu | 1.3179 ac |
| 9 mu | 1.4826 ac |
| 10 mu | 1.6474 ac |
| 15 mu | 2.4711 ac |
| 20 mu | 3.2947 ac |
| 25 mu | 4.1184 ac |
| 30 mu | 4.9421 ac |
| 40 mu | 6.5895 ac |
| 50 mu | 8.2368 ac |
| 60 mu | 9.8842 ac |
| 70 mu | 11.5316 ac |
| 75 mu | 12.3553 ac |
| 80 mu | 13.179 ac |
| 90 mu | 14.8263 ac |
| 100 mu | 16.4737 ac |
| 250 mu | 41.1842 ac |
| 500 mu | 82.3685 ac |
| 1,000 mu | 164.7369 ac |
Where you’ll use it
Chinese farm statistics, land contracts and news reports give area in mu, while English-language agricultural reports, commodity analyses and readers in the United States often use acres. Comparing yields is the most common use: a yield quoted per mu has to be multiplied by about 6.07 to get the yield per acre. Getting this wrong by using the hectare factor instead overstates or understates results by more than double.
Tip: If you also need hectares, divide mu by 15, which is exact. Converting mu to hectares first and then to acres (× 2.471) gives the same answer and is easy to check.