Area
Surface, land and cross-sectional area.
Try a decimal, 1e-9, 1/3, or 5 1/2.
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Convert square foot (ft²) to acre (acre). Enter a value for an instant result, or use the examples and reverse conversion below.
Surface, land and cross-sectional area.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Enter a square foot value to calculate acre with full internal precision before display rounding.
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
| Unit | Symbol | Converted value |
|---|---|---|
| square micrometrefrom ft² | µm² | 92903000000 |
| square millimetrefrom ft² | mm² | 92903 |
| square centimetrefrom ft² | cm² | 929.03 |
| square decimetrefrom ft² | dm² | 9.2903 |
| square metrefrom ft² | m² | 0.092903 |
| arefrom ft² | a | 0.00092903 |
| hectarefrom ft² | ha | 0.0000092903 |
| square kilometrefrom ft² | km² | 0.000000092903 |
| square inchfrom ft² | in² | 144 |
| square footfrom ft² | ft² | 1 |
| square yardfrom ft² | yd² | 0.111111 |
| acrefrom ft² | acre | 0.0000229568 |
| square milefrom ft² | mi² | 0.0000000358701 |
| barnfrom ft² | b | 9.2903e26 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
Square Foot (ft²) and acre (acre) are units of area. Use this page to convert in either direction.
| Square Foot (ft²) | Acre (acre) |
|---|---|
| 1 ft² | 0.0000229568 acre |
| 5 ft² | 0.000114784 acre |
| 10 ft² | 0.000229568 acre |
| 100 ft² | 0.00229568 acre |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
acre to ft² (acre to square foot)