Convert 1 hectare to square millimeter

1 ha (hectare) is equal to 10,000,000,000 mm² (square millimeter). To convert from hectare to square millimeter, multiply by 10,000,000,000 or divide by 0.0000000001.

• 1 ha × 10000000000 = 10000000000 mm²
• 1 ha ÷ 1.0E-10 = 10000000000 mm²