1 milligrams = 1000 micrograms
1 sq meter = 10000 sq cm
25 mg/sq m = 25 x 1000 / 10000 micro gm/sq cm = 2.5 micrograms/square cm
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1 square centimeter equals 1 centimeter squared
1 square centimeter = 0.0001 square meters
Since a centimeter is 10 millimeters, it follows that a square centimeter is equal to 102 = 100 square millimeters.
Measure the square's in, Area, Perimeter and centimeter squared
kilograms per cm squared.