Convert 1 square millimeter to hectare

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

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