Acres to Square metres Converter
Convert acres (ac) to square metres (m²) instantly. Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.
Result
- Square metres
- 4,046.86 m²
How to use the acres to square metres converter
- Enter the acres (ac).
- The results update as you type, or press Calculate.
- Read the square metres first, then the supporting figures below it.
Formula
Square metres = acres × 4,046.8564224
Worked example
For example, with these inputs:
- Acres (ac): 1
the calculator returns:
- Square metres: 4,046.86 m²
Acres to Square metres table
| Acres | Square metres |
|---|---|
| 1 ac | 4,046.86 m² |
| 2 ac | 8,093.71 m² |
| 5 ac | 20,234.28 m² |
| 10 ac | 40,468.56 m² |
| 20 ac | 80,937.13 m² |
| 25 ac | 101,171.41 m² |
| 50 ac | 202,342.82 m² |
| 100 ac | 404,685.64 m² |
| 250 ac | 1,011,714.11 m² |
| 500 ac | 2,023,428.21 m² |
| 1,000 ac | 4,046,856.42 m² |
About this conversion
Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Frequently asked questions
How many square metres are in one acre?
1 ac = 4,046.86 m².
How do I convert ac to m²?
Square metres = acres × 4,046.8564224.