Acre to Square Feet Calculator

Frequently asked questions

• How many square feet are in 1 acre?

  1 acre equals 43,560 square feet. Multiply the number of acres by 43,560 to get the area in square feet. Example: 2.5 acres × 43,560 = 1,08,900 sq ft.

• What formula does this acre calculator use?

  Square feet = acres × 43,560. The tool accepts decimals, so 0.5 acre becomes 21,780 sq ft and 0.25 acre becomes 10,890 sq ft.

• Is an acre the same as a bigha, guntha, or cent?

  No. Bigha, guntha, cent, ground, and kanal are local Indian land units, and their size changes by state. Convert those to acres first using your state’s official rate, then use this calculator for square feet.

• How do I convert acres to square meters or hectares?

  1 acre is about 4,046.86 square meters, and 1 hectare is about 2.471 acres. This page only converts acres to square feet. Use a separate converter if the deed is written in hectares or square meters.

• Should I trust this number on a property sale deed?

  Use it to check a listing or a rough quote. For registration, loan, or dispute, follow the area on the sale deed, revenue record, or approved site plan. Plot shape and setbacks do not change the acre-to-square-feet math, but they do change usable space.

• Why does 10 acres fill the circle on this page?

  The ring is a visual scale capped at 10 acres so small plots still show a clear arc. The square-feet result itself is not capped. Enter any acreage of 0 or more and the conversion still uses × 43,560.