Convert Square Thou to Square Feet
Convert Square Thou (thou²) to Square Feet (ft²) instantly and accurately.
Conversion Formula
ft² = thou² × 6.944444444e-9
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 Feet
A square foot (ft²) is an imperial unit of area equal to a square with sides of one foot (12 in × 12 in or 144 in²). It is the standard for measuring floor space in the United States and some other countries. A typical bedroom is 100-150 ft², and the average American house is roughly 2,000-2,500 ft². This unit dominates real estate listings, flooring sales, and construction in countries using imperial measurements.
Quick Reference Table
| Square Thou (thou²) | Square Feet (ft²) |
|---|---|
| 1 thou² | 6.944 × 10-9 ft² |
| 2 thou² | 1.389 × 10-8 ft² |
| 5 thou² | 3.472 × 10-8 ft² |
| 10 thou² | 6.944 × 10-8 ft² |
| 25 thou² | 1.736 × 10-7 ft² |
| 50 thou² | 3.472 × 10-7 ft² |
| 100 thou² | 6.944 × 10-7 ft² |