XinY Units - Convert area units from Square Millimetres to Square Metres
For all your unit conversions. Convert from x to y, from this to that.
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Square Millimetres
The area equal to a square that is 1 millimeter on each side.
Square Metres
The square metre or square meter is the SI derived unit of area with symbol m2. It is the area of a square with sides one metre in length. The White House in Washington with it's six stories is 5,100 square meters of floor space and includes 132 rooms and 35 bathrooms, 412 doors, 147 windows.