Convert Thou to Kilometers
Convert Thou (th) to Kilometers (km) instantly and accurately.
Conversion Formula
km = th × 2.540000000e-8
About Thou
A thou (also called mil) is one thousandth of an inch, equal to 0.0254 millimeters or 25.4 micrometers. This unit is commonly used in engineering and manufacturing in countries that use imperial measurements, particularly for specifying tolerances, wire gauges, and thin material thicknesses. For example, a standard plastic bag might be 1-2 thou thick, a sheet of paper is about 4 thou, and precision machined parts often have tolerances measured in thou. Electronic circuit board copper traces are typically 1.4 thou thick.
About Kilometers
A kilometer (km) is 1,000 meters and the standard unit for measuring longer distances in most of the world. It takes about 10-12 minutes to walk one kilometer at a normal pace. Common references include: a typical city block might be 100-200 meters (0.1-0.2 km), most cars display speed in km/h, and marathon races are 42.195 kilometers long. Road signs, GPS systems, and maps globally use kilometers to indicate distances between cities and locations.
Quick Reference Table
| Thou (th) | Kilometers (km) |
|---|---|
| 1 th | 2.54 × 10-8 km |
| 2 th | 5.08 × 10-8 km |
| 5 th | 1.27 × 10-7 km |
| 10 th | 2.54 × 10-7 km |
| 25 th | 6.35 × 10-7 km |
| 50 th | 1.27 × 10-6 km |
| 100 th | 2.54 × 10-6 km |