**What is a Square Millimeter unit?**

Square Millimeter (American spelling) or Square Millimetre (international spelling) is a unit of area. It is an SI-derived unit. The symbol of the Square Millimeter is mm² or sqmm or mm^2.

**How do I calculate Square Millimeters?**

__ Answer:__ If we multiply the millimeter length and millimeter width together, we will find the square millimeter area.

**What size is a square millimeter?**

__ Answer:__ A square millimeter is a measurement of area. One square millimeter is the equivalent of the area of a square that is one millimeter in length on each side. The perimeter of such a square (the total distance around it) would be four millimeters.

**Is sqmm the same as mm²?**

__ Answer:__ Both are the same. Square millimeter is written as mm² and sqmm both.

**What is sqmm stand for?**

__ Answer:__ Square millimeter is the full form of sqmm.

**How do you write square millimeters in short?**

__ Answer:__ mm² and sqmm are short forms of square millimeters.