Convert square mm to square m
Task: Convert 40,000 square millimeters to square meters (show work) Formula: mm 2 ÷ 1,000,000 = m 2 Calculations: 40,000 mm 2 ÷ 1,000,000 = 0.04 m 2 Result: 40,000 mm 2 is equal to 0.04 m 2. Conversion Table. For quick reference purposes, below is a conversion table that you can use to convert from mm 2 to m 2.