Convert Square Decimeters to Square Thou
Convert Square Decimeters (dm²) to Square Thou (thou²) instantly and accurately.
Conversion Formula
thou² = dm² × 15500031
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.
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 Decimeters (dm²) | Square Thou (thou²) |
|---|---|
| 1 dm² | 15500000 thou² |
| 2 dm² | 31000100 thou² |
| 5 dm² | 77500200 thou² |
| 10 dm² | 155000000 thou² |
| 25 dm² | 387501000 thou² |
| 50 dm² | 775002000 thou² |
| 100 dm² | 1.55 × 109 thou² |