in3 to mm2 – Cubic Inches to Square Millimeters – converter online

Enter volume in in3:

Enter thickness in in:



How to convert from cubic inches (in3) to square millimeters (mm2)?

The volume in cubic inches (in3) should be divided by the thickness in inches and multiply by 645.16. The result is an area in square millimeters (mm2).

1 mm= (1 in3 / 1 in) * 645.16