In 1 square kilometer there are 1,000,000 centiares. Meanwhile in 1 centiares there are 0.00000100000 square kilometer. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Centiares to Square kilometer calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert square kilometers (km²) to centiares (ca), convert through square meters (m²).
Key facts
Conversion formula (km² to centiares)
Quick example
Use this metric area conversion anytime you need to change km² to centiare values.
1 square kilometer (km²) equals 10,000,000 centiares (ca).
Centiares measure land area, and 1 centiare equals 1 square meter.
There are 10,000,000 centiares in 1 square kilometer.
That’s because 1 km² equals 1,000,000 m², and each m² is 1 centiare.
Use this formula:
centiares = square kilometers × 10,000,000
Example:
2.5 km² = 2.5 × 10,000,000 = 25,000,000 ca
Use this formula:
square kilometers = centiares ÷ 10,000,000
Example:
4,000,000 ca = 4,000,000 ÷ 10,000,000 = 0.4 km²
A centiare is defined as 1% of an are.
Since 1 are equals 100 square meters, 1 centiare equals 1 square meter.
Yes. Centiares are used to measure land area, often with ares and hectares.
They work well for plots, fields, and property sizes.
1 km² equals:
Since 1 are equals 100 centiares, 1 km² also equals 10,000,000 centiares.
Multiply the km² value by 10 million.
You can also shift the decimal 7 places to the right.
Example:
0.03 km² = 0.03 × 10,000,000 = 300,000 ca
You can, but the numbers get large.
For big regions, km² or hectares are often easier to read and share.
Use the square meter link as a check:
Example:
0.8 km² = 800,000 m² = 800,000 ca
The Calculate Box tool to convert square kilometer to centiares uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a square kilometer value in the box and have it instantly converted to centiares.