Square millimetre is metric area unit, symbol: [mm²]. Definition of 1 square millimetre = 1 mm x 1 mm. . Compared to square-metre, square millimetre is smaller unit.
• 1 [mm²] = (exactly) `0.000001` [m²]
• 1 [m²] = (exactly) `1/(0.000001)` [mm²] = 1000000 [mm²]
Multiply convert of square millimetre to common area units:[mm²]
Area units sort by name in ABC order