Convert Square Kilometers to Square Thou
Convert Square Kilometers (km²) to Square Thou (thou²) instantly and accurately.
Conversion Formula
thou² = km² × 1.550003100e+15
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.
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 Kilometers (km²) | Square Thou (thou²) |
|---|---|
| 1 km² | 1.55 × 1015 thou² |
| 2 km² | 3.1 × 1015 thou² |
| 5 km² | 7.75 × 1015 thou² |
| 10 km² | 1.55 × 1016 thou² |
| 25 km² | 3.875 × 1016 thou² |
| 50 km² | 7.75 × 1016 thou² |
| 100 km² | 1.55 × 1017 thou² |