Last updated July 29, 2026
| FROM | TO | MULTIPLY BY |
|---|---|---|
| square millimetres | square inches | 0.00155 |
| square inches | square millimetres | 645.16 |
| square centimetres | square inches | 0.155 |
| square inches | square centimetres | 6.452 |
| square metres | square feet | 10.76 |
| square feet | square metres | 0.0929 |
| square metres | square yards | 1.196 |
| square yards | square metres | 0.835 |
| square kilometres | square miles | 0.3861 |
| square miles | square kilometres | 2.59 |
| hectacres | acres | 2.471 |
| acres | hectacres | 0.4047 |