Convert area units — square meters, acres, hectares, square feet, square kilometers.
| Unit | Name | Value |
|---|---|---|
| m² | Square Meter | 10000 |
| km² | Square Kilometer | 0.01 |
| ac | Acre | 2.4710516 |
| ft² | Square Foot | 107639.15 |
| yd² | Square Yard | 11959.906 |
| mi² | Square Mile | 0.0038610188 |
Common hectare values converted to square kilometer — factor: 1 ha = 0.01 km²
| Hectare (ha) | Square Kilometer (km²) | Context |
|---|---|---|
| 0.001 ha | 1.000e-05 km² | Garden |
| 0.01 ha | 0.0001 km² | City lot |
| 0.1 ha | 0.001 km² | City block |
| 0.5 ha | 0.005 km² | Half hectare |
| 1 ha | 0.01 km² | Football pitch |
| 2 ha | 0.02 km² | Two pitches |
| 5 ha | 0.05 km² | Small farm |
| 10 ha | 0.1 km² | Medium farm |
| 25 ha | 0.25 km² | Large farm |
| 50 ha | 0.5 km² | Small estate |
| 100 ha | 1 km² | Large farm |
| 250 ha | 2.5 km² | Large estate |
| 500 ha | 5 km² | Nature reserve |
| 1,000 ha | 10 km² | Large estate |
| 1e+04 ha | 100 km² | Nature park |
Converting hectare to square kilometer is common in real estate, agriculture, surveying, and construction. Property listings, land records, and planning documents often use different area units depending on the country or industry — making accurate conversion essential for cross-border transactions and international comparisons.
As a practical reference: 5 ha = 0.05 square kilometer and 10 ha = 0.1 square kilometer. For larger land areas, 100 ha = 1 square kilometer — a common benchmark for farm and estate valuations. The reverse: 1 km² = 100 ha.
All conversions use the internationally recognized factor of exactly 1 ha = 0.01 km². Calculations are performed in IEEE 754 double-precision floating point, giving accuracy to at least 8 significant figures — more than sufficient for any practical application.
Formula: Square Kilometer = Hectare × 0.01
Multiply any hectare value by 0.01 to get square kilometer. One hectare equals 0.01 km².
Reverse: Hectare = Square Kilometer × 100
Hectares ÷ 100 = km². Simple division.
One hundred hectares = one square kilometer.
km² × 100 = ha.
Reports crop area, yield statistics, and subsidy eligibility in hectares.
Measures forest cover, deforestation rates, and reforestation targets in hectares.
Designs city zones, parks, and development areas using hectares.
Quantifies habitat loss, protected area sizes, and land-use change in hectares.
Evaluates large-scale land deals in countries using the metric system.
Plans irrigation, fertilizer, and pesticide application per hectare of cropland.
The hectare is a metric unit equal to 10,000 m² or 2.471 acres, defined in 1795 as part of the French metric system. The name comes from the Latin area and the Greek hekaton (hundred).
Hectares are the global standard for agricultural land measurement, forest inventories, nature reserves, and urban planning across metric countries.
Interesting fact: One hectare of wheat can produce about 3-8 tonnes of grain. The Amazon rainforest covers roughly 550 million hectares.
The square kilometer is equal to one million square meters, used for measuring large geographic areas such as countries, forests, lakes, and urban regions.
It became the standard measure for national territories and natural features as cartography evolved in the 19th and 20th centuries alongside the metric system.
Interesting fact: The world's smallest country, Vatican City, covers just 0.44 km². Russia, the largest, spans about 17.1 million km².