Convert Square Centimeters to Square Thou
Convert Square Centimeters (cm²) to Square Thou (thou²) instantly and accurately.
Conversion Formula
thou² = cm² × 155000.31
About Square Centimeters
A square centimeter (cm²) is a metric unit of area equal to a square with sides of one centimeter (10 mm × 10 mm). It is widely used for measuring moderate-sized surfaces like postage stamps, credit cards, or smartphone screens. A standard credit card has an area of about 46 cm². This unit is common in everyday crafts, school science, and smaller construction projects where precision matters but square meters would be too large.
About Square Thou
A square thou (thou²), sometimes called a square mil, is the area of a square with sides of one thousandth of an inch (0.0254 mm), equal to approximately 6.452 × 10⁻¹⁰ m². This tiny imperial unit is indispensable in precision engineering, PCB (printed circuit board) design, and manufacturing, where conductor widths, dielectric coating thicknesses, and tight machining tolerances are specified in thou. Wire insulation, thin films, and precision-stamped metal components are commonly described using this unit.
Quick Reference Table
| Square Centimeters (cm²) | Square Thou (thou²) |
|---|---|
| 1 cm² | 155000 thou² |
| 2 cm² | 310001 thou² |
| 5 cm² | 775002 thou² |
| 10 cm² | 1550000 thou² |
| 25 cm² | 3875010 thou² |
| 50 cm² | 7750020 thou² |
| 100 cm² | 15500000 thou² |