Acre (ac)
An acre is 43,560 square feet, or exactly 4,046.8564224 square meters — a traditional land measure.
Acres parcel farmland, suburban lots, and parks in the United States, UK, and several Commonwealth countries.
Acre to Square Foot
Convert acre to square foot instantly. Type in either field — results update live.
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Area Acre Square Foot
1 acre = 43,560 square feet
Unit
Unit
Conversion table
Selected ac values converted to ft² using the exact factor from this tool.
| ac | ft² |
|---|---|
| 0.01 | 435.6 |
| 0.1 | 4,356 |
| 1 | 43,560 |
| 2 | 87,120 |
| 3 | 130,680 |
| 5 | 217,800 |
| 10 | 435,600 |
| 20 | 871,200 |
| 50 | 2,178,000 |
| 100 | 4,356,000 |
| 1,000 | 43,560,000 |
How to convert
Exact conversion factors in both directions, plus a worked example.
1 ac = 43560 ft²
1 ft² = 0.0000229568 ac
To convert acre to square foot, multiply by 43560.
To convert square foot to acre, multiply by 0.0000229568.
Example: convert 10 ac to ft²
10 × 43560 = 435600 ft²
About these units
Short background on the units used in this conversion.
Square Foot (ft²)
A square foot is the area of a square one foot per side, equal to exactly 0.09290304 square meters.
Square feet describe US home floor area, office leases, and retail space listings.
Frequently asked questions
How many square feet are in one acre?
One acre equals 43,560 square feet. Multiply your acres value by 43,560 to convert to square feet.
What is the conversion formula?
ft² = ac × 43,560The reverse is
ac = ft² × 0.0000229568, using the same exact factors as this converter.Is this Acre to Square Foot converter private?
Yes. All calculations run locally in your browser. Nothing you type is sent to a server.
All acre conversions
Jump to any area conversion starting from acre — including the reverse direction and every other unit in our dataset.
square foot (ft²) → acre (ac)
acre (ac) → square meter (m²)acre (ac) → square kilometer (km²)acre (ac) → square centimeter (cm²)acre (ac) → square millimeter (mm²)acre (ac) → square micrometer (µm²)acre (ac) → square nanometer (nm²)acre (ac) → square decimeter (dm²)acre (ac) → square dekameter (dam²)acre (ac) → square hectometer (hm²)acre (ac) → hectare (ha)acre (ac) → are (a)acre (ac) → barn (b)acre (ac) → square mile (mi²)acre (ac) → square mile (us survey) (mi² surv)acre (ac) → sectionacre (ac) → square yard (yd²)acre (ac) → square foot (us survey) (ft² surv)acre (ac) → sabinacre (ac) → square inch (in²)acre (ac) → circular inch (circ in)acre (ac) → acre (us survey) (ac surv)acre (ac) → square rod (rd²)acre (ac) → square rod (us survey) (rd² surv)acre (ac) → square perch (perch²)acre (ac) → square pole (pole²)acre (ac) → square chain (ch²)acre (ac) → roodacre (ac) → township (twp)acre (ac) → homesteadacre (ac) → square mil (mil²)acre (ac) → circular mil (circ mil)acre (ac) → square nautical mile (NM²)acre (ac) → arpentacre (ac) → cuerdaacre (ac) → plazaacre (ac) → varas castellanas cuad (varas cast.)acre (ac) → varas conuqueras cuad (varas con.)acre (ac) → electron cross section (σₑ)