Converter hub
Area Converter
Area conversions matter for real estate, land and construction. One square metre is the SI base; hectares, acres and square feet are the units you meet in listings and deeds. Pick a pair below or open the page for the exact factor, a worked example and a full chart.
Units in this category
Area conversions matter for real estate, land and construction. One square metre is the SI base; hectares, acres and square feet are the units you meet in listings and deeds.
| Unit | Symbol | Definition |
|---|---|---|
| Square Kilometers | km² | A square kilometre is one million square metres, used for land and administrative areas. |
| Square Meters | m² | The square metre is the SI unit of area and the standard unit in property listings. |
| Hectares | ha | A hectare is exactly 10,000 square metres, or about 2.471 acres. |
| Acres | ac | An international acre is 4,046.8564224 square metres, historically the area a team could plough in a day. |
| Square Miles | mi² | A square mile is 2,589,988.11 square metres, or 640 acres. |
| Square Feet | ft² | A square foot is 0.09290304 square metres and is standard in US and UK property. |
All area conversions
Every listed pair has its own page with the formula, examples and a chart. Choose the starting unit:
Square Kilometers (km²)
Hectares (ha)
Square Miles (mi²)
Frequently asked questions
How many area units are supported?
6 units, which gives 10 one-way conversions.
Are the factors exact?
They follow SI and international definitions. Where a unit is approximate by nature (for example Mach, months or fuel economy), the page says so.
Can I convert in both directions?
Yes. Every pair page has a swap link and the calculator accepts any decimal value.