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 ft² = 0.111 yd²
1 yd² = 9 ft²
例子:
将15 平方英尺转换为方院：
15 ft² = 1.667 yd²
| 平方英尺 | 方院 |
|---|---|
| 0.01 ft² | 0.001 yd² |
| 0.1 ft² | 0.011 yd² |
| 1 ft² | 0.111 yd² |
| 2 ft² | 0.222 yd² |
| 3 ft² | 0.333 yd² |
| 5 ft² | 0.556 yd² |
| 10 ft² | 1.111 yd² |
| 20 ft² | 2.222 yd² |
| 30 ft² | 3.333 yd² |
| 40 ft² | 4.444 yd² |
| 50 ft² | 5.556 yd² |
| 60 ft² | 6.667 yd² |
| 70 ft² | 7.778 yd² |
| 80 ft² | 8.889 yd² |
| 90 ft² | 10 yd² |
| 100 ft² | 11.111 yd² |
| 250 ft² | 27.778 yd² |
| 500 ft² | 55.556 yd² |
| 750 ft² | 83.333 yd² |
| 1000 ft² | 111.111 yd² |
| 10000 ft² | 1,111.111 yd² |
| 100000 ft² | 11,111.111 yd² |
规则