Convert Square Thou to Square Kilometers
Convert Square Thou (thou²) to Square Kilometers (km²) instantly and accurately.
Conversion Formula
km² = thou² × 6.451600000e-16
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 Kilometers
A square kilometer (km²) is a metric unit of area equal to a square with sides of one kilometer (1,000 m × 1,000 m). It is used for measuring large land areas such as cities, forests, lakes, and countries. Manhattan (New York) is about 59 km², and Monaco (the second smallest country) is just over 2 km². This unit is essential in geography, urban planning, forestry, and environmental impact studies.
Quick Reference Table
| Square Thou (thou²) | Square Kilometers (km²) |
|---|---|
| 1 thou² | 6.452 × 10-16 km² |
| 2 thou² | 1.29 × 10-15 km² |
| 5 thou² | 3.226 × 10-15 km² |
| 10 thou² | 6.452 × 10-15 km² |
| 25 thou² | 1.613 × 10-14 km² |
| 50 thou² | 3.226 × 10-14 km² |
| 100 thou² | 6.452 × 10-14 km² |