Land, floor space, and property dimensions get measured in a mix of area units depending on the country and context. This converter handles seven common area units using square meters as the internal reference.
Conversion factors used
| Unit | Square meters equivalent |
|---|---|
| 1 square foot (ft²) | 0.092903 m² |
| 1 square yard (yd²) | 0.836127 m² |
| 1 acre | 4,046.86 m² |
| 1 hectare | 10,000 m² |
| 1 square kilometer (km²) | 1,000,000 m² |
| 1 square mile (mi²) | 2,589,988 m² |
Worked examples
| From | To | Result |
|---|---|---|
| 1 hectare | acres | 2.47 acres |
| 5,000 ft² | m² | 464.5 m² |
| 1 acre | m² | 4,046.86 m² |
See our metric vs. imperial conversion guide for the same conversion approach applied to length, weight, and temperature.
Where each unit is commonly used
- Square meters/feet: home and floor plan measurements.
- Acres/hectares: land and real estate, agriculture.
- Square kilometers/miles: large regions, cities, countries.
A real-world mix-up
An American house hunter browsing property listings in France or Spain will typically see land size quoted in hectares, a unit rarely used for residential lots back home — a "0.5 hectare" plot sounds unfamiliar until converted to roughly 1.24 acres, a size most US buyers can picture instantly. The reverse confusion happens to European buyers looking at US real estate listed in acres. Agricultural land listings compound this further, since a "200-hectare farm" and a "500-acre farm" are close in size but easy to misjudge without converting first.
References
- National Institute of Standards and Technology (NIST) — official unit definitions
Frequently asked questions
How many square feet are in an acre?
One acre equals 43,560 square feet.
How do I convert hectares to acres?
Multiply the number of hectares by approximately 2.47105 to get acres.
What's the difference between a hectare and a square kilometer?
One square kilometer equals 100 hectares, since a hectare is 10,000 m² and a square kilometer is 1,000,000 m².
Why is the hectare the standard unit for farmland worldwide?
The hectare is part of the metric system and scales cleanly with square meters and square kilometers, making it easier for international agricultural statistics and trade reports to compare land area across countries without unit conversion.