Acres to Square Feet Converter
Convert acres to square feet, square yards, square meters and hectares.
Calculator
Square feet43,560 ft²
| Square yards | 4,840 yd² |
|---|---|
| Square meters | 4,047 m² |
| Hectares | 0.405 ha |
How it is calculated
1 acre = 43,560 square feet, so 1 × 43,560 = 43,560 ft². In square yards: ÷ 9 = 4,840 yd². In square meters: × 0.0929 = 4,047 m².
About this calculator
One acre is exactly 43,560 square feet. Multiply the acres by 43,560 to get square feet, divide square feet by 9 for square yards, or multiply by 0.0929 for square meters.
Land is often described in acres while lawns, sod, seed and fertilizer are planned in square feet, so this conversion is the first step in many yard and land projects.
Worked examples
| Project | Square feet |
|---|---|
| 0.25 acres | 10,890 ft² |
| 1 acre | 43,560 ft² |
| 2.5 acres | 108,900 ft² |
| 10 acres | 435,600 ft² |
Notes
- A one-acre lot includes the house, driveway and other buildings, so the lawn area is usually much smaller than 43,560 square feet.
- A square acre is about 208.7 feet on each side.
- For legal or surveyed areas, use the figures on the survey.
Quick answers by size
Click one for the exact answer.
How to measure and use this calculator
- Enter the number of acres, including decimals such as 0.25.
- Read the area in square feet, square yards, square meters and hectares.
- Use the square feet figure with the lawn, sod, seed and fertilizer calculators.
- For an irregular lot, use a surveyed area rather than an estimate.
Common mistakes
- Treating an acre as a 100 by 100 foot square (that is only 10,000 square feet).
- Mixing US survey and international feet on large surveyed areas; the difference is tiny but matters for legal descriptions.
- Forgetting that a lot's buildable area may be smaller than its total area.
Tips
- One acre is exactly 43,560 square feet.
- A square lot of one acre is about 208.7 feet on each side.
- Use the result with the lawn, sod, seed and fertilizer calculators to plan work on a large lot.
Frequently asked questions
How many square feet are in an acre?
43,560 square feet.
How many square feet is a quarter acre?
10,890 square feet (43,560 ÷ 4).