Acres to Square Feet Conversion Chart
Quick Answer
1 ac = 43560 ft²
Formula: Square Foot = Acre x 43560
Quick values
Standards and method
Values are calculated from the shared conversion-factor library. Exact defined relationships are preserved; displayed results are rounded only for readability.
Maintained by Miguel Coelho. Updated . See our editorial policy.
Printable acres to square feet conversion chart
Acres to square feet, square metres and hectares. Includes the exact definition, formulas, a worked example and sources. Conversion values are checked against the defining constants, and reference data is cited to its source, before the PDF is published.
Free to print, share and use in teaching materials with attribution (CC BY 4.0).
Acres to Square Feet Conversion Table
| Acre (ac) | Square Foot (ft²) |
|---|---|
| 0.1 ac | 4356 ft² |
| 0.125 ac | 5445 ft² |
| 0.25 ac | 10890 ft² |
| 0.5 ac | 21780 ft² |
| 0.75 ac | 32670 ft² |
| 1 ac | 43560 ft² |
| 1.5 ac | 65340 ft² |
| 2 ac | 87120 ft² |
| 2.5 ac | 108900 ft² |
| 3 ac | 130680 ft² |
| 4 ac | 174240 ft² |
| 5 ac | 217800 ft² |
| 10 ac | 435600 ft² |
| 20 ac | 871200 ft² |
| 40 ac | 1742400 ft² |
| 50 ac | 2178000 ft² |
| 100 ac | 4356000 ft² |
| 160 ac | 6969600 ft² |
| 640 ac | 27878400 ft² |
Values are calculated from the shared conversion-factor library. Exact defined relationships are preserved; displayed results are rounded only for readability.
Full acres to square feet conversion chart
Acres to square feet, square metres and hectares. These are the same tables as the printable PDF. For: Property buyers, farmers, surveyors and landscapers.
- Exact definition
- 1 acre = 43,560 ft² = 4,046.856 422 4 m² exactly
- Formula
- ft² = acres × 43,560
- Reverse
- acres = ft² ÷ 43,560
- Worked example
- 0.25 ac × 43,560 = 10,890 ft²
- Rounding
- Square feet and square metres are whole numbers; hectares to 4 decimal places.
Conversion factor matrix
Read across: 1 unit in the left column equals the value shown in each column unit.
| 1 unit = | ft² | yd² | m² | ac | ha | km² | mi² |
|---|---|---|---|---|---|---|---|
| 1 ft² | 1 | 0.111111 | 0.092903 | 2.29568 × 10⁻⁵ | 9.2903 × 10⁻⁶ | 9.2903 × 10⁻⁸ | 3.58701 × 10⁻⁸ |
| 1 yd² | 9 | 1 | 0.836127 | 2.06612 × 10⁻⁴ | 8.36127 × 10⁻⁵ | 8.36127 × 10⁻⁷ | 3.22831 × 10⁻⁷ |
| 1 m² | 10.7639 | 1.19599 | 1 | 2.47105 × 10⁻⁴ | 1 × 10⁻⁴ | 1 × 10⁻⁶ | 3.86102 × 10⁻⁷ |
| 1 ac | 43,560 | 4,840 | 4,046.86 | 1 | 0.404686 | 0.00404686 | 0.0015625 |
| 1 ha | 107,639 | 11,959.9 | 10,000 | 2.47105 | 1 | 0.01 | 0.00386102 |
| 1 km² | 1.07639 × 10⁷ | 1.19599 × 10⁶ | 1 × 10⁶ | 247.105 | 100 | 1 | 0.386102 |
| 1 mi² | 2.78784 × 10⁷ | 3.0976 × 10⁶ | 2.58999 × 10⁶ | 640 | 258.999 | 2.58999 | 1 |
Acres to square feet, square metres and hectares
| Acres (ac) | Square feet (ft²) | Square metres (m²) | Hectares (ha) |
|---|---|---|---|
| 0.1 | 4,356 | 405 | 0.0405 |
| 0.125 | 5,445 | 506 | 0.0506 |
| 0.2 | 8,712 | 809 | 0.0809 |
| 0.25 | 10,890 | 1,012 | 0.1012 |
| 0.3 | 13,068 | 1,214 | 0.1214 |
| 0.33 | 14,375 | 1,335 | 0.1335 |
| 0.4 | 17,424 | 1,619 | 0.1619 |
| 0.5 | 21,780 | 2,023 | 0.2023 |
| 0.6 | 26,136 | 2,428 | 0.2428 |
| 0.7 | 30,492 | 2,833 | 0.2833 |
| 0.75 | 32,670 | 3,035 | 0.3035 |
| 0.8 | 34,848 | 3,237 | 0.3237 |
| 0.9 | 39,204 | 3,642 | 0.3642 |
| 1 | 43,560 | 4,047 | 0.4047 |
| 1.25 | 54,450 | 5,059 | 0.5059 |
| 1.5 | 65,340 | 6,070 | 0.6070 |
| 2 | 87,120 | 8,094 | 0.8094 |
| Acres (ac) | Square feet (ft²) | Square metres (m²) | Hectares (ha) |
|---|---|---|---|
| 2.5 | 108,900 | 10,117 | 1.0117 |
| 3 | 130,680 | 12,141 | 1.2141 |
| 4 | 174,240 | 16,187 | 1.6187 |
| 5 | 217,800 | 20,234 | 2.0234 |
| 6 | 261,360 | 24,281 | 2.4281 |
| 7 | 304,920 | 28,328 | 2.8328 |
| 8 | 348,480 | 32,375 | 3.2375 |
| 9 | 392,040 | 36,422 | 3.6422 |
| 10 | 435,600 | 40,469 | 4.0469 |
| 15 | 653,400 | 60,703 | 6.0703 |
| 20 | 871,200 | 80,937 | 8.0937 |
| 25 | 1,089,000 | 101,171 | 10.1171 |
| 40 | 1,742,400 | 161,874 | 16.1874 |
| 50 | 2,178,000 | 202,343 | 20.2343 |
| 100 | 4,356,000 | 404,686 | 40.4686 |
| 160 | 6,969,600 | 647,497 | 64.7497 |
| 640 | 27,878,400 | 2,589,988 | 258.9988 |
Sources for this chart
Conversion values on this sheet are generated by the AllUnitConversions conversion library and automatically checked against the exact definitions above before the PDF is produced; reference tables are taken from the sources listed.
- International Yard and Pound Agreement (1959) — 1 in = 25.4 mm, 1 ft = 0.3048 m, 1 lb = 0.453 592 37 kg exactly
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Related Converters & Charts
Acres to Square Feet Conversion Chart FAQs
Common questions about the acres to square feet conversion chart.
How do you convert acre to square foot?
Multiply the number of acre by 43560. For example, 1 ac = 43560 ft². The chart above lists the most common values.
What is 1 ac in square foot?
1 ac equals 43560 ft². See the full reference table above for more values, or download the printable PDF.
What exact definition is this acres to square feet chart based on?
1 acre = 43,560 ft² = 4,046.856 422 4 m² exactly. Formula: ft² = acres × 43,560. Square feet and square metres are whole numbers; hectares to 4 decimal places.
Can I download this chart as a PDF, CSV, or JSON?
Yes. Use the Download A4 PDF or US Letter PDF buttons for a printable version, or download the same tables as CSV or JSON from the links on this page.