Square Centimeters to Hectares: the quick answer
1 cm² = 1 × 10⁻⁸ ha
1 square centimeter equals 1 × 10⁻⁸ hectares
To convert square centimeters to hectares, multiply the value by 1 × 10⁻⁸. To go the other way, multiply hectares by 100,000,000 to get square centimeters.