Convert Square Millimeters to Mu
Convert Square Millimeters (mm²) to Mu (亩) instantly and accurately.
Conversion Formula
亩 = mm² × 1.500000000e-9
About Square Millimeters
A square millimeter (mm²) is a metric unit of area equal to a square with sides of one millimeter. It is commonly used in precision engineering, electronics, and measuring very small surfaces such as microchips or printed circuit boards. To visualise: a typical pinhead has an area of about 2-3 mm². This unit is essential in microscopy, medical imaging, and manufacturing where tiny, precise measurements are critical.
About Mu
The mu (亩, also written mǔ) is China's traditional unit of agricultural land area, equal to 1/15 hectare or approximately 666.67 m². It has been the standard land measurement in China for over two thousand years. China's total farmland is reported in hundreds of millions of mu, and rural property records across China use mu as the primary unit. One hectare equals exactly 15 mu. One mu equals approximately 0.165 acres or about 797 square yards.
Quick Reference Table
| Square Millimeters (mm²) | Mu (亩) |
|---|---|
| 1 mm² | 1.5 × 10-9 亩 |
| 2 mm² | 3 × 10-9 亩 |
| 5 mm² | 7.5 × 10-9 亩 |
| 10 mm² | 1.5 × 10-8 亩 |
| 25 mm² | 3.75 × 10-8 亩 |
| 50 mm² | 7.5 × 10-8 亩 |
| 100 mm² | 1.5 × 10-7 亩 |