Square Centimeters to Hectares
Type a value in either box to convert between square centimeters and hectares. The factor is 1e-08.
| Square Centimeters | Hectares |
|---|---|
| 1 cm² | 1e-08 ha |
| 2 cm² | 2e-08 ha |
| 3 cm² | 3e-08 ha |
| 5 cm² | 5e-08 ha |
| 10 cm² | 1e-07 ha |
| 25 cm² | 2.5e-07 ha |
| 50 cm² | 5e-07 ha |
| 100 cm² | 1e-06 ha |
How to use
- Enter a value in the Square Centimeters field.
- The Hectares figure appears immediately — no button to press.
- Typing in the Hectares field converts back to Square Centimeters the same way.
- Use the reference table for the values that come up most often.
Square Centimeters to Hectares formula
The factor from square centimeters to hectares is 1e-08.
ha = cm² × 1e-08
Why this factor: the square centimeter and the hectare are both defined against the square meter, so dividing one definition by the other gives 1e-08 directly. Both definitions are set out in full below.
To go the other way, divide by 1e-08 — or use the Hectares to Square Centimeters converter, which is the same calculation reversed.
Worked example
Take 250 cm² and multiply by the factor 1e-08: the result is 2.5e-06 ha.
250 cm² × 1e-08 = 2.5e-06 ha
The converter above does this for any value you type, in either direction.
What is a square centimeter?
A square centimeter is the area of a one-centimeter square.
Definition: Exactly 1×10⁻⁴ square meter — because 0.01 m squared is 0.0001 m².
Where it is used: Small surface areas, contact and cross-sectional areas, and pressure calculations.
What is a hectare?
A hectare is the standard metric unit of land area — a 100-meter square.
Definition: Exactly 10,000 square meters, which is one square hectometer.
Where it is used: Agricultural and forestry land, development sites, and land-use statistics worldwide.
Worth knowing: Roughly two and a half acres, and almost exactly the area of an international rugby pitch.
Square Centimeters vs Hectares
The square centimeter and the hectare belong to the same family of units, so converting between them is usually a matter of shifting a decimal point or applying a small whole-number factor.
Frequently asked questions
How many hectares are in a square centimeter?
One square centimeter equals 1e-08 hectares.
What is the formula to convert square centimeters to hectares?
Multiply the number of square centimeters by 1e-08. To reverse it, divide by 1e-08 instead.
How do I convert hectares back to square centimeters?
Divide by 1e-08, which is the same as multiplying by 100000000.
How many hectares are in 10 square centimeters?
10 cm² works out to 1e-07 ha.
Is there anything to watch out for with hectares?
Roughly two and a half acres, and almost exactly the area of an international rugby pitch.
How is the square centimeter defined?
Exactly 1×10⁻⁴ square meter — because 0.01 m squared is 0.0001 m².