Convert Square Centimeters to Hectares (cm2 to ha)
1 square centimeter (cm²) = 1 × 10⁻⁸ hectares (ha). 1 ha = 100000000 cm². Example: 15 cm² = 15 × 1 × 10⁻⁸ = 1.5 × 10⁻⁷ ha.
Also searched as square centimeters to ha, square centimeters in ha, square centimeters into hectares, cm2 to ha, cm2 in hectares, cm2 into hectare, square centimeter to hectare, cm2 to hectares converter, square centimetres to hectares and how many hectares in a square centimeter.
1 cm² = 1e-8 ha
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk square centimeter to hectare converter to paste a column from Excel.
How to Convert Square Centimeter to Hectare
- 1 cm² = 1 × 10⁻⁸ ha
- 1 ha = 100000000 cm²
- Example: convert 15 cm² to ha: 15 cm² = 15 × 1 × 10⁻⁸ ha = 1.5 × 10⁻⁷ ha
Formula
ha = cm² ÷ 100000000
Derivation from SI units:
- 1 cm² = (0.01 m)² = 10⁻⁴ m²
- 1 ha = 100 m × 100 m = 10 000 m² (a non-SI unit accepted for use with the SI)
- 1 cm² = 0.0001 m² ÷ 10000 m² per ha = 1 × 10⁻⁸ ha
Both units are defined exactly, so the factor is exact. Square Centimeter definition: square centimeter; Hectare definition: hectare.
Worked examples
- A reading of 20 cm² converts to 2 × 10⁻⁷ ha.
20 cm² × 1 × 10⁻⁸ = 2 × 10⁻⁷ ha - A value of 200 cm² is 0.000002 ha.
200 cm² × 1 × 10⁻⁸ = 0.000002 ha
Square Centimeter to Hectare conversion table
| Square Centimeters (cm²) | Hectares (ha) |
|---|---|
| 1 cm² | 1 × 10⁻⁸ ha |
| 2 cm² | 2 × 10⁻⁸ ha |
| 5 cm² | 5 × 10⁻⁸ ha |
| 6.45 cm² | 6.45 × 10⁻⁸ ha |
| 10 cm² | 1 × 10⁻⁷ ha |
| 20 cm² | 2 × 10⁻⁷ ha |
| 25 cm² | 2.5 × 10⁻⁷ ha |
| 38.3 cm² | 3.83 × 10⁻⁷ ha |
| 50 cm² | 5 × 10⁻⁷ ha |
| 100 cm² | 0.000001 ha |
| 200 cm² | 0.000002 ha |
| 500 cm² | 0.000005 ha |
| 929 cm² | 0.00000929 ha |
| 1000 cm² | 0.00001 ha |
| 10000 cm² | 0.0001 ha |
Where it's used
Square Centimeters are used for test areas in air-permeability testing (ISO 9237: 5, 10, 20, 50, 100 cm²; ASTM D737: 38.3 cm²), while hectares appear in farm and forest land. Both measure area, so the conversion is a fixed factor.
Square Centimeter to other area units
| Conversion | 1 cm² equals |
|---|---|
| square centimeter to hectare | 1 × 10⁻⁸ ha |
| square centimeter to square meter | 0.0001 m² |
| square centimeter to square foot | 0.001076391042 ft² |
| square centimeter to square inch | 0.15500031 in² |
| square centimeter to acre | 2.471053815 × 10⁻⁸ ac |
| square centimeter to square millimeter | 100 mm² |
| square centimeter to square kilometre | 1 × 10⁻¹⁰ km² |
| square centimeter to square yard | 0.0001195990046 yd² |
Show 1 more units
| square centimeter to square mile | 3.861021585 × 10⁻¹¹ mi² |
|---|
Frequently asked questions
How many hectares are in 1 square centimeter?
1 cm² = 1 × 10⁻⁸ ha.
How do I convert square centimeters to hectares?
Multiply the value in cm² by 1 × 10⁻⁸, or divide it by 100000000. For example, 15 cm² × 1 × 10⁻⁸ = 1.5 × 10⁻⁷ ha.
Is the cm² to ha conversion exact?
Yes. Both units are defined exactly, and 1 cm² is exactly 1 × 10⁻⁸ ha.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 2 with SI prefix centi.
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8, non-SI units accepted for use with the SI.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Square Centimeters to Hectares (cm2 to ha). Retrieved October 25, 2026, from https://scientificconverters.com/area/square-centimeters-to-hectares/
IEEE
Scientific Converters, "Convert Square Centimeters to Hectares (cm2 to ha)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/area/square-centimeters-to-hectares/