A square millimeter is a unit of area used for measuring very small areas. The unit is used as a part of SI measurement system and has a symbol of mm2. One square millimeter is the area that equals to 1/100th of a square centimeter (or 0.01 cm2) or equals to 1/1000000th of a square meter (1.0 x 10-6 m2).
Square Millimeter Conversions
Please select area unit to convert Square Millimeter to.