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Convert acres to square feet for land measurement, real estate, and property calculations. 1 acre equals 43,560 square feet.
1 Acre = 43,560 Square Feet
About 208.7 feet x 208.7 feet
| Acres | Square Feet | Square Yards | Description |
|---|---|---|---|
| 0.25 | 10,890 | 1,210 | Quarter acre (common lot size) |
| 0.5 | 21,780 | 2,420 | Half acre lot |
| 1 | 43,560 | 4,840 | One acre |
| 5 | 217,800 | 24,200 | Small farm plot |
| 40 | 1,742,400 | 193,600 | Quarter-quarter section |
| 640 | 27,878,400 | 3,097,600 | One square mile (section) |
There are exactly 43,560 square feet in one acre. This number comes from the definition: 1 acre = 66 feet x 660 feet (1 chain x 1 furlong).
An acre is about 90% the size of a football field (without end zones). A square acre would be about 209 feet on each side.
Typical suburban lots range from 0.15 to 0.5 acres. Urban lots are often smaller (0.05-0.15 acres), while rural properties are typically 1+ acres.
There are 640 acres in one square mile. This is also called a section in the US Public Land Survey System.
A hectare is about 2.47 acres. Hectares are used in metric countries, while acres are common in the US and UK.
Historically, an acre was the amount of land that could be plowed in one day by a yoke of oxen. The number 43,560 comes from 1 chain (66 ft) x 1 furlong (660 ft) = 43,560.