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 ground = 0 nmi²
1 nmi² = 8,129.76 ground
例子:
将15 地面转换为方形英里：
15 ground = 0.002 nmi²
| 地面 | 方形英里 |
|---|---|
| 0.01 ground | 1.2300e-6 nmi² |
| 0.1 ground | 1.2300e-5 nmi² |
| 1 ground | 0 nmi² |
| 2 ground | 0 nmi² |
| 3 ground | 0 nmi² |
| 5 ground | 0.001 nmi² |
| 10 ground | 0.001 nmi² |
| 20 ground | 0.002 nmi² |
| 30 ground | 0.004 nmi² |
| 40 ground | 0.005 nmi² |
| 50 ground | 0.006 nmi² |
| 60 ground | 0.007 nmi² |
| 70 ground | 0.009 nmi² |
| 80 ground | 0.01 nmi² |
| 90 ground | 0.011 nmi² |
| 100 ground | 0.012 nmi² |
| 250 ground | 0.031 nmi² |
| 500 ground | 0.062 nmi² |
| 750 ground | 0.092 nmi² |
| 1000 ground | 0.123 nmi² |
| 10000 ground | 1.23 nmi² |
| 100000 ground | 12.3 nmi² |
规则