Charge Converter
Quickly convert between different units of electric charge.
Why Use This Tool? ✅
Fast & Accurate
Provides precise, real-time conversions based on fundamental physical constants.
Supports Multiple Units
Easily convert between Coulombs, its metric prefixes, and the elementary charge (e).
Perfect for Multiple Fields
An essential tool for students, physicists, and engineers working in electronics.
User-Friendly Interface
A simple, clean interface that makes converting any charge unit quick and easy.
The Foundation of Electricity: A Guide to Electric Charge ⚡
Electric charge is the fundamental physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charge: positive and negative. Like charges repel each other, while opposite charges attract. The study of electric charge is the foundation of electricity and electronics.
The SI Unit: Coulomb (C)
The standard international (SI) unit for electric charge is the Coulomb (C), named after the French physicist Charles-Augustin de Coulomb. One coulomb is a very large amount of charge. It is formally defined as the charge transported by a constant current of one ampere in one second.
Working with Different Scales of Charge
Because the coulomb is so large, we often work with smaller units using metric prefixes, especially in electronics:
- MilliCoulomb (mC): One-thousandth of a Coulomb (10⁻³ C).
- MicroCoulomb (µC): One-millionth of a Coulomb (10⁻⁶ C).
- NanoCoulomb (nC): One-billionth of a Coulomb (10⁻⁹ C).
The Fundamental Unit: Elementary Charge (e)
At the subatomic level, charge is quantized, meaning it exists in discrete, natural units. The smallest possible unit of charge is the elementary charge (e), which is the magnitude of the electric charge carried by a single proton (positive) or a single electron (negative). Its value is approximately 1.602 x 10⁻¹⁹ Coulombs. It is a fundamental physical constant and a crucial unit in particle physics and chemistry. This converter allows you to easily switch between the macroscopic world of Coulombs and the microscopic world of elementary charges.