面积是二维表面或形状范围的度量。它通常以平方米（例如平方米（平方米））为单位进行测量。
1 mi² = 3,097,601.202 yd²
1 yd² = 3.2283e-7 mi²
例子:
将15 平方英里转换为方院：
15 mi² = 46,464,018.026 yd²
| 平方英里 | 方院 |
|---|---|
| 0.01 mi² | 30,976.012 yd² |
| 0.1 mi² | 309,760.12 yd² |
| 1 mi² | 3,097,601.202 yd² |
| 2 mi² | 6,195,202.403 yd² |
| 3 mi² | 9,292,803.605 yd² |
| 5 mi² | 15,488,006.009 yd² |
| 10 mi² | 30,976,012.017 yd² |
| 20 mi² | 61,952,024.035 yd² |
| 30 mi² | 92,928,036.052 yd² |
| 40 mi² | 123,904,048.069 yd² |
| 50 mi² | 154,880,060.087 yd² |
| 60 mi² | 185,856,072.104 yd² |
| 70 mi² | 216,832,084.121 yd² |
| 80 mi² | 247,808,096.139 yd² |
| 90 mi² | 278,784,108.156 yd² |
| 100 mi² | 309,760,120.173 yd² |
| 250 mi² | 774,400,300.433 yd² |
| 500 mi² | 1,548,800,600.866 yd² |
| 750 mi² | 2,323,200,901.298 yd² |
| 1000 mi² | 3,097,601,201.731 yd² |
| 10000 mi² | 30,976,012,017.313 yd² |
| 100000 mi² | 309,760,120,173.132 yd² |
规则