How to convert acres to square feet
To convert acres to square feet, multiply the value by the conversion factor 43,560. To go the other way, multiply by 0.0000229568 (or divide by 43,560).
Worked example: 5 ac to ft²
- Write the value: 5 ac
- Multiply by 43,560: 5 × 43,560
- Result: 217,800 ft²
Acre to Square Foot conversion table
Quick reference values, rounded to 6 significant digits.
| Acre (ac) | Square Foot (ft²) |
|---|---|
| 0.001 ac | 43.56 ft² |
| 0.005 ac | 217.8 ft² |
| 0.01 ac | 435.6 ft² |
| 0.05 ac | 2,178 ft² |
| 0.1 ac | 4,356 ft² |
| 0.25 ac | 10,890 ft² |
| 0.5 ac | 21,780 ft² |
| 1 ac | 43,560 ft² |
| 2 ac | 87,120 ft² |
| 3 ac | 130,680 ft² |
| 5 ac | 217,800 ft² |
| 10 ac | 435,600 ft² |
| 20 ac | 871,200 ft² |
| 50 ac | 2,178,000 ft² |
| 100 ac | 4,356,000 ft² |
Square Foot to Acre
| ft² | ac |
|---|---|
| 1 ft² | 0.0000229568 ac |
| 5 ft² | 0.000114784 ac |
| 10 ft² | 0.000229568 ac |
| 50 ft² | 0.00114784 ac |
| 100 ft² | 0.00229568 ac |
1 Acre in other area & land units
About Acre and Square Foot
What is a acre (ac)?
An acre equals 43,560 square feet or 100 decimal. It is used for agricultural land in Bangladesh, India, the UK and the US.
What is a square foot (ft²)?
A square foot is the area of a square with 1-foot sides. Flats and apartments in Dhaka are priced per square foot.
Important for land buyers: traditional units like katha and bigha differ between districts. This converter uses the standard values used in Dhaka and most official calculations: 1 katha = 720 sq ft, 1 bigha = 20 katha = 14,400 sq ft, 1 decimal (shotok) = 435.6 sq ft, 1 acre = 100 decimal. Always confirm the local value written in your deed (দলিল) or with the land office (AC Land).
Where acre to square foot conversion is used
Area & land conversions are needed for buying and selling land, flats, deed (dolil) records, construction planning and farming. Converting between acres and square feet is especially common when you compare products, read foreign specifications, or fill in forms that expect a specific unit.
Need every unit at once? Use the full Area & Land Converter.
Frequently asked questions
How many square feet are in 1 acre?
1 Acre equals 43,560 ft².
How do I convert acres to square feet?
Multiply the number of acres by 43,560. For example, 5 ac × 43,560 = 217,800 ft².
What is 5 ac in ft²?
5 ac = 217,800 ft².
How many acres are in 1 square foot?
1 Square Foot equals 0.0000229568 ac. Use the Square Feet to Acre converter for the reverse direction.
Is this Acre to Square Foot converter accurate?
Yes. It uses exact internationally defined conversion factors and the standard Bangladeshi values for traditional units, calculated with full floating-point precision. Results are displayed rounded for readability.