Convert 1 square millimeter to square centimeter

1 mm² (square millimeter) is equal to 0.01 cm² (square centimeter). To convert from square millimeter to square centimeter, multiply by 0.01 or divide by 100.

• 1 mm² × 0.01 = 0.01 cm²
• 1 mm² ÷ 100 = 0.01 cm²