Acres to Square Feet
An acre is 4,840 square yards, roughly the size of a football field, the traditional unit for land area in the US and UK. The square foot is used throughout the US and UK to describe the floor area of homes and offices. 1 ac equals 43,560 ft², so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to area, measured here against area's base unit (m²) — every other area unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
ft² = ac × 43,560
ac = ft² × ≈0.0000229568
Worked example: 5 ac × 43,560 = 217,800 ft².
Conversion table
| Acre (ac) | Square Foot (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 |
| 25 ac | 1,089,000 ft² |
| 50 ac | 2,178,000 ft² |
| 100 ac | 4,356,000 ft² |
| 250 ac | 10,890,000 ft² |
| 500 ac | 21,780,000 ft² |
| 1,000 ac | 43,560,000 ft² |
Frequently asked
- How many Square Feet in a acre?
- 1 ac equals 43,560 ft².
- How do I convert Acres to Square Feet?
- Multiply the value in ac by 43,560 to get ft². The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — Acre and Square Foot are both defined by a fixed conversion factor to area's base unit (m²), so the result shown is exact to the precision displayed, not an approximation.