Area Converter
Switch between metric and imperial area units for land, flooring and property listings.
How Area Converter works
Convert area between square metres, square feet, hectares, acres and more. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.
That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.
Area factors are squared
Every unit here is a square of a length unit, so the factors are the squares of the linear ones: a square foot is 0.3048² = 0.09290304 m², not 0.3048. That single mistake inflates an area by a factor of 3.28.
The hectare breaks the pattern — it is defined directly as 10,000 m², a square 100 m on a side, which is why it is such a clean unit for land.
| Unit | In square metres |
|---|---|
| mm² | 0.000001 |
| cm² | 0.0001 |
| m² | 1 |
| ha | 10,000 |
| km² | 1,000,000 |
| in² | 0.00064516 |
| ft² | 0.09290304 |
| acre | 4,046.8564224 |
Acre, hectare and the plots in between
An acre is 4,046.86 m², a hectare is 10,000 m², so a hectare is about 2.47 acres. A cricket pitch, a football pitch and a suburban plot are all quoted in different units depending on the country.
In South Asia, marla, kanal, bigha and guntha are common but not standardised across regions. Convert those to square feet using the local definition first — an online factor from another province can be wrong for your document.
Why floor area is ambiguous
Carpet area, built-up area and super built-up area differ by 20–30% on the same property. The conversion is exact; the number you convert may already include a loading factor.
For a listing, convert all three separately rather than converting one and assuming the rest follow.
Good to know
- Works offline once loaded, including on flights and in locked-down networks.
- No file size limit beyond your device's own memory.
- Free to use, with no account and no usage counter.
- Results are produced locally, so they are not logged or shared with anyone.
Questions
How big is an acre?
4046.86 square metres, roughly 0.4 hectares.
Do you support square kilometres?
Yes, along with square inches and square feet.
Why not multiply by 0.3048?
That converts length. Area needs the square of that factor.
How many square feet in an acre?
43,560 — the classic figure, equal to 4,046.86 m².
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