Calculate the number of electrons (or protons) required to produce a specific net electrical charge.
Charge Input
Count Results
Enter the net charge (supports scientific notation)
Quick Reference
QNet charge in Coulombs
e1.602 × 10⁻¹⁹ C
NInteger count of electrons
Overview
In any electrically charged object, the net charge is the result of an imbalance between the number of protons and electrons. This calculator finds the number of excess (or deficit) electrons for a given charge.
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Pro Tips
Formula: N = Q / e, where e is the elementary charge.
The elementary charge e is approx 1.602 × 10⁻¹⁹ Coulombs.
Charge is quantized, meaning it always comes in whole-number multiples of e.
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Fun Facts
"A lightning bolt can transfer as many as 15 to 350 Coulombs of charge."
"A typical static shock from a doorknob might involve only a few micro-Coulombs."
"Even a small net charge involves a staggering number of individual electrons."
