Convert Picometers to Thou
Convert Picometers (pm) to Thou (th) instantly and accurately.
Conversion Formula
th = pm × 3.937007874e-8
About Picometers
A picometer (pm) is one trillionth of a meter (10⁻¹² m), making it 1,000 times larger than a femtometer but still unimaginably small. This unit is crucial in atomic and molecular physics, as it represents the scale of atomic radii and chemical bonds. For example, a hydrogen atom has a radius of about 53 picometers, and the length of a typical chemical bond ranges from 100 to 200 picometers. X-ray wavelengths also fall within this range.
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.
Quick Reference Table
| Picometers (pm) | Thou (th) |
|---|---|
| 1 pm | 3.937 × 10-8 th |
| 2 pm | 7.874 × 10-8 th |
| 5 pm | 1.969 × 10-7 th |
| 10 pm | 3.937 × 10-7 th |
| 25 pm | 9.843 × 10-7 th |
| 50 pm | 1.969 × 10-6 th |
| 100 pm | 3.937 × 10-6 th |