Acres to Square Feet (ac to ft²)
Free online acre to square foot converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
AREA CONVERTER — INSTANT RESULT
Formula: multiply the acre value by 43,560 — i.e. ft² = ac × 43,560
Quick check: 1 ac = 43,560 ft²
Quick check: 1 ac = 43,560 ft²
Acres to Square Feet conversion table
| Acres (ac) | Square Feet (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 |
How to convert acres to square feet
To convert acres to square feet, multiply the amount in acres by 43,560. For example, 10 ac = 435,600 ft². To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert between metric and imperial/US land area units, including the acre (43,560 ft² exactly) and hectare (10,000 m²) used worldwide for land measurement.
Frequently asked questions
How many square feet are in one acre?
One acre is exactly 43,560 square feet.
How do I convert ac to ft²?
Multiply the ac value by 43,560 to get ft². The converter at the top of this page does this automatically and works in both directions.
How much is 100 acres in square feet?
100 acres equals 4,356,000 square feet.