Acres to Square feet
Convert acres to square feet instantly.
Acres to Square feet (ac to ft²) Converter
1 acre = 43,560 square feet
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- 1 ac = 43560 ft²
- 5 ac = 217800 ft²
- 10 ac = 435600 ft²
- 25 ac = 1089000 ft²
- Square metresm²
- Square feetft²
- Acresac
- Square metresm²
- Square feetft²
How it’s calculated
ft² = ac × 43560
- Multiply the value in acres by 43560.
- To go back, divide by 43560 (or multiply by 0.00002295684114).
- 1 ac = 43,560 ft² · 1 ft² = 0.00002295684114 ac
Quick examples
1 acre = 43,560 square feet · 1 ft² = 0.000022957 ac
- 1 acre = 43,560 square feet
- 5 acres = 217,800 square feet
- 10 acres = 435,600 square feet
- 25 acres = 1,089,000 square feet
- 100 acres = 4,356,000 square feet
Acres to square feet conversion table
| Acres (ac) | Square feet (ft²) |
|---|---|
| 0.1 ac | 4,356 ft² |
| 0.5 ac | 21,780 ft² |
| 1 ac | 43,560 ft² |
| 2 ac | 87,120 ft² |
| 3 ac | 130,680 ft² |
| 4 ac | 174,240 ft² |
| 5 ac | 217,800 ft² |
| 6 ac | 261,360 ft² |
| 7 ac | 304,920 ft² |
| 8 ac | 348,480 ft² |
| 9 ac | 392,040 ft² |
| 10 ac | 435,600 ft² |
| 15 ac | 653,400 ft² |
| 20 ac | 871,200 ft² |
| 25 ac | 1,089,000 ft² |
| 30 ac | 1,306,800 ft² |
| 40 ac | 1,742,400 ft² |
| 50 ac | 2,178,000 ft² |
| 75 ac | 3,267,000 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 |
About these units
Acre (ac)
US & imperial (identical)
1 ac = 4,046.8564224 m² (exact)
The international acre: 43,560 square feet, or exactly 4,046.8564224 m².
Source: NIST SP 811 / Handbook 44
Square foot (ft²)
US & imperial (identical)
1 ft² = 0.09290304 m² (exact)
Defined as exactly 0.09290304 m².
Source: NIST SP 811 / Handbook 44
Frequently asked questions
How do I convert acres to square feet?
Use ft² = ac × 43560. Multiply the value in acres by 43560.
How many square feet are in 1 acre?
1 acre (ac) equals 43,560 square feet (ft²).
How many acres are in 1 square foot?
1 square foot (ft²) equals 0.000022957 acres (ac); more precisely 0.00002295684114.
What is 10 ac in ft²?
10 acres = 435,600 square feet.
What is a acre?
The international acre: 43,560 square feet, or exactly 4,046.8564224 m².
What is a square foot?
Defined as exactly 0.09290304 m².
Related conversions
Formula: ft² = ac × 43560. Factors last reviewed 2026-10-27.