Square Feet to Qing (China): the quick answer
1 ft² = 1.39355 × 10⁻⁶ qing
1 square foot equals 1.39355 × 10⁻⁶ qing (China)
To convert square feet to qing (China), multiply the value by 1.39355 × 10⁻⁶. To go the other way, multiply qing (China) by 717,594 to get square feet.