Square feet to Acres Converter
Convert square feet (sq ft) to acres (ac) 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
- Acres
- 2.295684e-5 ac
How to use the square feet to acres converter
- Enter the square feet (sq ft).
- The results update as you type, or press Calculate.
- Read the acres first, then the supporting figures below it.
Formula
Acres = square feet × 2.295684e-05
Worked example
For example, with these inputs:
- Square feet (sq ft): 1
the calculator returns:
- Acres: 2.295684e-5 ac
Square feet to Acres table
| Square feet | Acres |
|---|---|
| 1 sq ft | 2.295684e-5 ac |
| 2 sq ft | 4.591368e-5 ac |
| 5 sq ft | 0.000115 ac |
| 10 sq ft | 0.00023 ac |
| 20 sq ft | 0.000459 ac |
| 25 sq ft | 0.000574 ac |
| 50 sq ft | 0.001148 ac |
| 100 sq ft | 0.002296 ac |
| 250 sq ft | 0.005739 ac |
| 500 sq ft | 0.011478 ac |
| 1,000 sq ft | 0.022957 ac |
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.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
Frequently asked questions
How many acres are in one square feet?
1 sq ft = 2.295684e-5 ac.
How do I convert sq ft to ac?
Acres = square feet × 2.295684e-05.