How to Use Area Converter
The Area Converter converts between ten area units simultaneously from a single entry.
- Type a Value in Any Field — Enter an area in any supported unit. The Area Converter fills all other fields instantly.
- Select Precision — Use the precision control to display 2–10 significant figures. Increase precision for scientific work; reduce it for everyday land-area estimates.
- Copy Any Result — Click the copy icon next to any output field to copy that value to your clipboard.
- Compare Two Areas — Enter a second value in the comparison row to see the ratio between two areas side by side (e.g. how many football fields fit in a hectare).
Formula & Theory — Area Converter
The Area Converter converts all values through square metres (m²) as the internal base:
m²_value = input × to_m2_factor
output = m²_value / to_m2_factor (for target unit)| Unit | Square Metres (exact or defined) |
|---|---|
| 1 mm² | 1 × 10⁻⁶ m² |
| 1 cm² | 1 × 10⁻⁴ m² |
| 1 in² | 6.4516 × 10⁻⁴ m² (exact) |
| 1 ft² | 0.09290304 m² (exact) |
| 1 yd² | 0.83612736 m² (exact) |
| 1 acre | 4,046.8564 m² (exact) |
| 1 ha | 10,000 m² (exact) |
| 1 km² | 1,000,000 m² (exact) |
| 1 mi² | 2,589,988.110336 m² (exact) |
Handy Reference Relationships
| Relationship | Value |
|---|---|
| 1 hectare | 2.471 acres |
| 1 km² | 100 hectares |
| 1 mi² | 640 acres |
| 1 acre | 43,560 ft² |
| 1 ft² | 144 in² |
Use Cases for Area Converter
The Area Converter is used wherever land, surface, or material areas need to be expressed in different unit systems:
- Real estate and land surveying — Convert lot sizes between acres, hectares, and square feet for international buyers and sellers.
- Agriculture — Compare field sizes across metric (hectares) and imperial (acres) farming regions; convert satellite-measured area to familiar local units.
- Architecture and interior design — Floor plan areas are typically measured in m² in Europe and ft² in North America; the Area Converter switches between them instantly.
- Environmental science — Convert habitat area, deforestation extent, or protected land zones between km², hectares, and square miles for international reports.
- Urban planning and GIS — Switch area units between project databases and regulatory submissions that use different unit conventions.
- Education — Area conversion is a key topic in geography, maths, and science; the Area Converter turns abstract unit relationships into live, explorable examples.