What is a acre?
Definition
ac
The acre is an imperial unit of land area equal to 4,047 square meters or 43,560 square feet.
Unit system
Imperial / US
Convert acres
All area units
| Unit | Symbol | System |
|---|---|---|
| square millimeters | mm² | Metric |
| square centimeters | cm² | Metric |
| square meters | m² | Metric |
| hectares | ha | Metric |
| square kilometers | km² | Metric |
| square inches | in² | Imperial / US |
| square feet | ft² | Imperial / US |
| square yards | yd² | Imperial / US |
| acres | ac | Imperial / US |
| square miles | mi² | Imperial / US |