How to convert square kilometers to hectares
To convert a measurement in square kilometers to hectares, multiply the value by 100. The conversion factor comes from the relationship between both units and the square meter.
For example, to convert 5 km² to hectares: 5 × 100 = 500 ha.
What is a square kilometer?
A square kilometer is a metric unit of area equal to the area of a square one kilometer on each side, or 1,000,000 square meters. The square kilometer became the standard unit for large land areas as the metric system spread. It is used for the areas of cities, countries, lakes, and other geographic features worldwide.
Common uses of square kilometers include: Areas of cities, countries, and regions; Land, forest, and agricultural coverage; Lake and reservoir surface area; Population density (people per km²).
What is a hectare?
A hectare is a metric unit of area equal to 10,000 square meters, or a square 100 meters on each side, about 2.471 acres. Coined in 1795 from the Greek 'hekaton' (hundred) and 'are', the hectare is the standard unit for land area in agriculture and forestry across most of the world, filling the gap between the square meter and the square kilometer.
Common uses of hectares include: Farmland and agricultural plot size; Forestry and conservation areas; Real estate land parcels; Parks and land-use planning.
Square Kilometers to hectares worked examples
Here are some common values converted:
1 km² = 100 ha 5 km² = 500 ha 10 km² = 1,000 ha 50 km² = 5,000 ha 100 km² = 10,000 ha
Frequently asked questions
How many hectares are in one square kilometer?
One square kilometer (km²) equals 100 hectares (ha). Multiply any value in square kilometers by 100 to convert to hectares.
How do I convert square kilometers to hectares?
Multiply the value in square kilometers by 100. For example, 5 km² × 100 = 500 ha.
How do I convert hectares to square kilometers?
Multiply the value in hectares by 0.01, or divide by 100. Use the swap button on the converter above to reverse the direction.
Is the square kilometer to hectare conversion exact?
Yes. Area conversions derive from the exact 1959 international definitions of the meter, yard, and foot, so the factors are exact.
What is the formula for square kilometers to hectares?
The formula is: ha = km² × 100. This comes from the definition of both units relative to the square meter.