How to convert from cubic inches (in3) to square meters (m2)?
The volume in cubic inches (in3) should be divided by the thickness in inches and divide by 1550. The result is an area in square meters (m2).
__ m2 ≈ (__ in3 / __ in) / 1550
__ m2 = (__ in3 / __ in) / (1/0.0254×1/0.0254) = (__ in3 / __ in) / 1550.003100
1 in = 2.54 cm = 0.0254 m ⇒ 1 m = 1/0.0254 in