Convert Thou to Parsecs
Convert Thou (th) to Parsecs (pc) instantly and accurately.
Conversion Formula
pc = th × 8.231579395e-22
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 Parsecs
A parsec (pc) is approximately 3.26 light years or 30.86 trillion kilometers, defined as the distance at which one astronomical unit subtends an angle of one arcsecond. Despite being less familiar than light years, parsecs are preferred by professional astronomers because they relate directly to stellar parallax measurements - the apparent shift in a star's position as Earth orbits the Sun. Most nearby stars are within a few dozen parsecs, our galaxy is about 30,000 parsecs across, and distant galaxies are measured in millions of parsecs (megaparsecs).
Quick Reference Table
| Thou (th) | Parsecs (pc) |
|---|---|
| 1 th | 8.232 × 10-22 pc |
| 2 th | 1.646 × 10-21 pc |
| 5 th | 4.116 × 10-21 pc |
| 10 th | 8.232 × 10-21 pc |
| 25 th | 2.058 × 10-20 pc |
| 50 th | 4.116 × 10-20 pc |
| 100 th | 8.232 × 10-20 pc |