In 1 centiares there are 1 square meter. Meanwhile in 1 square meter there are 1 centiares. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Square meter to Centiares calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert centiares (ca) to square meters (m²), use this fixed area conversion: 1 centiare = 1 m². That means the number stays the same.
This works because a centiare is defined as one square meter, so centiare to square meter conversion is a direct 1:1 match.
A centiare (symbol: ca) is a metric unit of area. It equals 1 square meter and is often used for small land areas. The centiare comes from the are system, where 1 are equals 100 square meters.
1 centiare equals 1 square meter.
1 ca = 1 m²
Use this direct formula:
square meters = centiares × 1
Since the values match, the number stays the same.
Square meters convert back the same way:
centiares = square meters × 1
1 m² = 1 ca
A centiare is defined as 1 percent of an are. An are is defined as 100 square meters. So, 1 percent of 100 square meters equals 1 square meter.
Centiares can show up in land listings, surveys, and land records, often in places that use the are system. Square meters are more common in most metric-based documents, but both describe the same area when centiares are involved.
Here are quick examples:
These links help when you see mixed units:
Most of the time, no. Since 1 ca equals 1 m², the conversion doesn’t change the number. Rounding only matters if your original value already has decimals from a measurement.
“ca” stands for centiare. If a plan says 250 ca, it means 250 square meters of area.
Yes, as a unit of area, 1 centiare always equals 1 square meter. The only difference is the unit name and the format used in a document.
Think of it as a one-to-one match:
centiares = square meters
If you can read the number, you already know the result in square meters.
The Calculate Box tool to convert centiares to square meter uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a centiares value in the box and have it instantly converted to square meter.