Convert circular mil to Electron cross section Online | Free area Converter

Circular Mil


A circular mil is a unit of area used mainly to measure the cross-sectional area of round wires and cables in electrical engineering.



  • Defined as the area of a circle with a diameter of 1 mil (1 mil = 0.001 inch).



  • Area = (diameter in mils)² circular mils.



  • 1 circular mil ≈ 7.854 × 10⁻¹⁰ square meters or 0.7854 square mils.



Circular mils simplify calculations for round wires since area scales with the square of the diameter.



Electron Cross Section


The electron cross section is a measure of the probability that an electron will interact with a target particle (like an atom or nucleus) during scattering or collision processes. It represents an effective area that quantifies the likelihood of interaction.



  • Typically measured in units called barns (1 barn = 10⁻²⁸ m²) or square meters.



  • Used in fields like nuclear physics, atomic physics, and materials science.



  • Cross sections vary depending on the energy of the electron and the nature of the target.



It helps scientists understand and predict how electrons scatter, absorb, or cause reactions at the microscopic level.



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