Convert Square Thou to Square Decimeters
Convert Square Thou (thou²) to Square Decimeters (dm²) instantly and accurately.
Conversion Formula
dm² = thou² × 6.451600000e-8
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.
About Square Decimeters
A square decimeter (dm²) is a metric area unit equal to 100 square centimeters (10 cm × 10 cm) or 0.01 square meters. It represents roughly the footprint of a large paperback book or a standard floor tile. While less common in everyday language than cm² or m², square decimeters appear in cooking (pan sizes), packaging design, and as a useful stepping stone in metric calculations - notably, exactly 1 liter of liquid forms a layer 1 dm² × 1 cm deep.
Quick Reference Table
| Square Thou (thou²) | Square Decimeters (dm²) |
|---|---|
| 1 thou² | 6.452 × 10-8 dm² |
| 2 thou² | 1.29 × 10-7 dm² |
| 5 thou² | 3.226 × 10-7 dm² |
| 10 thou² | 6.452 × 10-7 dm² |
| 25 thou² | 1.613 × 10-6 dm² |
| 50 thou² | 3.226 × 10-6 dm² |
| 100 thou² | 6.452 × 10-6 dm² |