Square Chains to Square Centimeters: the quick answer
1 ch² = 4,046,860 cm²
1 square chain equals 4,046,860 square centimeters
To convert square chains to square centimeters, multiply the value by 4,046,860. To go the other way, multiply square centimeters by 2.47105 × 10⁻⁷ to get square chains.