| All the unit conversions | |||
| Type | System | Unit | Conversion factor |
| Area (compound parts) | CGS | SquareCentimetre (cm2) | 0.0001 |
| Imperial | Acre (ac) | 4046.8564224 | |
| Rood (rood) | 1011.7141056 | ||
| SquareFoot (ft2) | 0.09290304 | ||
| SquareInch (in2) | 0.00064516 | ||
| SquarePerch (perch2) | 25.29285264 | ||
| SquarePole (pole2) | 25.29285264 | ||
| SquareRod (rd2) | 25.29285264 | ||
| None | Are (a) | 100 | |
| Barn (b) | 1E-28 | ||
| SI | SquareMetre (m2) | 1 | |
| USCS | SurveyAcre (surac) | 4046.87260987425200656852926 | |