| 1 Quadratzentimeter |
= 0.155 square inch |
| 1 Quadratmeter |
= 10.764 square feet = 1.196 square yards |
| 1 Quadratkilometer |
= 0.3861 square mile = 247.1 acres |
| 1 Hektar = 100 Ar |
= 2.471 acres |
| 1 square inch |
= 6,45 cm2 |
| 1 square foot |
= 929,03 cm2 |
| 1 square yard = 9 square feet |
= 0,836 m2 |
| 1 square rod = 30.25 square yards |
= 25,29 m2 |
| 1 acre = 4840 square yards |
= 40,47 Ar |
| 1 square mile = 640 acres |
= 2,59 km2 |