The smallest scale in physics: Yoctometers to Zeptometers conversion.
At the Planck scale, we encounter units like the Yoctometer (ym) and the Zeptometer (zm). These units are used by particle physicists to describe the diameter of subatomic particles like quarks and neutrinos.
There are exactly 1,000 yoctometers in 1 zeptometer. These measurements are so small that they cannot be seen even with the most powerful electron microscopes; they are calculated through mathematical models at facilities like CERN.