mm² to circular inch
39 unitsResult1.973525e-3
0.00197352516circular inch
1 mm² × 0.00197352516 = 0.00197352516 circular inch
Convert Square millimeter to Circular inch (mm² to circular inch)
1 square millimeter = 0.00197352516 circular inch. Convert square millimeters to circular inch instantly, with the exact factor, the formula and a reference table of common values.
Formula
circular inch = square millimeters × 0.00197352516
mm² to circular inch conversion table
| mm² | circular inch |
|---|---|
| 1 mm² | 0.00197352516 circular inch |
| 2 mm² | 0.00394705032 circular inch |
| 3 mm² | 0.00592057548 circular inch |
| 5 mm² | 0.0098676258 circular inch |
| 10 mm² | 0.0197352516 circular inch |
| 20 mm² | 0.0394705032 circular inch |
| 50 mm² | 0.098676258 circular inch |
| 100 mm² | 0.197352516 circular inch |
| 250 mm² | 0.49338129 circular inch |
| 500 mm² | 0.98676258 circular inch |
| 1000 mm² | 1.97352516 circular inch |
What is a square millimeter?
A square millimeter is a tiny square one millimeter on each side; a million of them make one square meter. It is about the size of a pinhead.
Engineers and machinists use it for wire cross-sections, small components and tolerances, and biologists use it under the microscope.
In writing, the square millimeter is usually shortened to "mm²". One square millimeter is 0.000001 square meters, and that ratio is what every number on this page is built from.