Electric Charge Unit Converter - Convert Coulombs, Ampere-hours & More
Electric Charge Converter
Quick Conversions
Top Electric Charge Units
Coulomb (C)
The SI unit of electric charge
Ampere-hour (Ah)
3,600 coulombs - commonly used for battery capacity
Milliampere-hour (mAh)
0.001 ampere-hours - used for small batteries
Faraday (F)
Approximately 96,485 coulombs - used in electrochemistry
Elementary charge (e)
1.602176634×10⁻¹⁹ C - the charge of a proton or electron
Statcoulomb
CGS unit of electric charge
All Electric Charge Units (A-Z)
Top Electric Charge Conversions
What is Electric Charge?
Electric charge is a fundamental property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charges: positive and negative. Like charges repel each other, while opposite charges attract. The SI unit of electric charge is the coulomb (C).
Electric charge is conserved in an isolated system, meaning the total charge remains constant over time. This principle is fundamental to many areas of physics and engineering. Understanding and converting between different units of electric charge is essential in fields such as electronics, electrochemistry, and physics.
For example, battery capacity is often measured in ampere-hours (Ah) or milliampere-hours (mAh), while fundamental physics calculations may use elementary charges (e) or coulombs (C). Our electric charge converter helps you seamlessly convert between these units for any application.
Common Use Cases
Battery Capacity
Determining battery life, comparing battery capacities. For example, converting 3000 mAh to 3 Ah for comparing smartphone battery capacities.
Electronics
Circuit design, component specifications. For example, converting 0.001 C to 1 mC for capacitor charge calculations.
Electrochemistry
Chemical reactions, Faraday's laws. For example, converting 2 F to approximately 192,970 C for electroplating calculations.
Physics Research
Particle physics, fundamental research. For example, converting 1.6×10⁻¹⁹ C to 1 elementary charge for atomic studies.
Historical Evolution of Electric Charge Measurement
The concept of electric charge has evolved significantly since ancient times when the Greeks observed static electricity. In the 18th century, Benjamin Franklin proposed the concept of positive and negative charges. Charles-Augustin de Coulomb later established Coulomb's law, which describes the force between electric charges.
The coulomb was named after Coulomb and became the SI unit of electric charge. The definition of the coulomb has changed over time, and since 2019, it is defined in terms of the elementary charge. This modern definition ensures greater precision and consistency in scientific measurements.
Frequently Asked Questions
What is the standard unit of electric charge?
The coulomb (C) is the SI unit of electric charge. It is defined as the charge transported by a constant current of one ampere in one second. This makes it the foundation for all electric charge measurements in the metric system and scientific research.
How do I convert ampere-hours to coulombs?
1 ampere-hour (Ah) equals 3600 coulombs (C). To convert from Ah to C, multiply by 3600. Our electric charge converter tool handles these conversions automatically with high precision, eliminating calculation errors and saving time.
What is the elementary charge?
The elementary charge (e) is the electric charge carried by a single proton or electron, approximately 1.602176634×10⁻¹⁹ coulombs. It is a fundamental physical constant and the smallest unit of electric charge that can exist freely in nature.
What is a Faraday in electrochemistry?
A Faraday (F) is a unit of electric charge equal to approximately 96,485 coulombs. It represents the charge of one mole of electrons and is commonly used in electrochemistry calculations, particularly in Faraday's laws of electrolysis.
Why are there different units for electric charge?
Different units are convenient for different applications. Coulombs for general physics, ampere-hours for battery capacity, and elementary charges for atomic-scale phenomena. This variety allows for precise expression of measurements across all scales and applications.
How accurate are your electric charge conversions?
Our electric charge converter uses internationally recognized conversion factors and mathematical formulas for maximum accuracy. All calculations are performed with high-precision arithmetic to ensure reliable results for both simple everyday conversions and complex scientific measurements.
Can I convert between any electric charge units?
Yes, our comprehensive electric charge converter supports conversions between all common units including coulombs, ampere-hours, milliampere-hours, faradays, and elementary charges. Whether you need to convert 1 coulomb to elementary charges or 1 ampere-hour to faradays, our tool handles all conversions.
Is your tool free to use?
Yes, our electric charge converter is completely free to use with no registration required. Simply enter your value, select your units, and get instant, accurate results. We believe accurate measurement conversion should be accessible to everyone, from students to professionals.