1 square millimeter is equal to 1.0E-10 hectares
| square millimeters (sq mm) | hectares (ha) |
|---|---|
| 20 | 2.0E-9 |
| 30 | 3.0E-9 |
| 40 | 4.0E-9 |
| 50 | 5.0E-9 |
| 60 | 6.0E-9 |
| 70 | 7.0E-9 |
| 80 | 8.0E-9 |
| 90 | 9.0E-9 |
| 100 | 1.0E-8 |
| 110 | 1.1E-8 |
| 120 | 1.2E-8 |
| 130 | 1.3E-8 |
| 140 | 1.4E-8 |
| 150 | 1.5E-8 |
| 160 | 1.6E-8 |
| 170 | 1.7E-8 |
| 180 | 1.8E-8 |
| 190 | 1.9E-8 |
| 200 | 2.0E-8 |
| 210 | 2.1E-8 |
To create a customized square millimeters to hectares conversion table, click on the "Create a customized area conversion table" button.