Area Converter
Convert land and floor areas between imperial and metric: square inches, feet, yards, meters and kilometers, plus acres and hectares — the units real estate, farming and flooring actually use.
Results
Formula
How to use this calculator
- Enter the area.
- Choose the current and target units.
- Press Calculate for the converted area.
Worked example
Convert 1 acre to square feet.
- By definition, an acre is 43,560 square feet (a chain by a furlong: 66 × 660 ft).
Result: 1 acre = 43,560 square feet.
Frequently asked questions
Where does the odd 43,560 come from?
An acre was one chain (66 ft) by one furlong (660 ft) — a day’s plowing strip in medieval England. 66 × 660 = 43,560, and the unit survived into modern surveying.
Acres or hectares — which is bigger?
A hectare (10,000 m²) is about 2.471 acres, so hectares are the bigger unit. Most of the world uses hectares; the US still lists land in acres.
How do I get square feet from room dimensions?
Multiply length by width in feet for each rectangular room and add the results. For an L-shaped room, split it into two rectangles.
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