charge converter
Convert electric charge between Coulombs, Ampere-hours, milliampere-hours (mAh), and elementary charges. Ideal for battery capacity sizing.
Unit ConvertersSmart Battery Translator
What's the total charge of my battery?
Electrons
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Physical electrons making up this charge
Real-World Charge Equivalents
How to Use the Electric Charge Converter
Step-by-step engineering guide for converting Coulombs, battery Ampere-hours, and physical electron counts.
Input Any Charge Unit
Enter a numerical value into any field of the Omni-Grid (Coulombs, Ah, mAh, μC, or Faraday). All companion units recalculate dynamically in real time.
Translate Battery Capacities
Use the Smart Battery Translator to quickly convert standard cell ratings (e.g., 3,000 mAh or 5,000 mAh) into equivalent Coulombs of stored electric charge.
Inspect the Elementary Electron Count
Review the real-time electron counter to visualize the trillions of physical elementary electrons that constitute your electrical charge.
Toggle Notation Styles
Switch between Standard Decimal for everyday equipment ratings and Scientific Notation (e-notation) for subatomic and electrochemical scales.
Explore Real-World Benchmarks
Follow the interactive logarithmic context bar to compare your charge against static shocks (1 μC), lightning bolts (15 C), and smartphone batteries (18,000 C).
Copy Technical Engineering Data
Click 'Copy Engineering Data' to export the comprehensive charge breakdown directly to your clipboard.
Frequently Asked Questions (FAQ)
Comprehensive technical explanations of electrical charge physics, electrochemical units, and battery metrics.
Q:What is an electric charge and how is a Coulomb (C) defined?
Electric charge is a fundamental physical property of subatomic particles. In the SI system, 1 Coulomb (C) is the amount of electric charge transported by an electric current of 1 Ampere flowing for 1 second (1 C = 1 A·s).
Q:How do Ampere-hours (Ah) and Milliampere-hours (mAh) convert to Coulombs?
Since 1 hour equals 3,600 seconds: 1 Ah = 1 A × 3,600 s = 3,600 Coulombs (C). Consequently, 1 mAh = 0.001 Ah = 3.6 Coulombs. For example, a 5,000 mAh smartphone battery stores 5,000 × 3.6 = 18,000 Coulombs of electric charge.
Q:How many electrons are contained in 1 Coulomb of electric charge?
The elementary charge of a single electron is approximately 1.602176634 × 10⁻¹⁹ C. Taking the reciprocal (1 / e) reveals that 1 Coulomb contains approximately 6.241509074 × 10¹⁸ electrons (over 6.24 quintillion electrons).
Q:What is the Faraday (F) unit of electric charge and where is it used?
The Faraday unit (not to be confused with the Farad unit of capacitance) represents the electric charge carried by one mole of electrons: 1 Faraday ≈ 96,485.33212 Coulombs. It is essential in electrochemistry, electroplating, and Faraday's laws of electrolysis.
Q:What is the difference between electric charge (Coulombs/mAh) and energy (Joules/Wh)?
Electric charge (Q, in Coulombs or mAh) measures the total quantity of electrons, whereas energy (E, in Joules or Watt-hours) reflects work capacity and depends on voltage: Energy = Charge × Voltage (E = Q × V). A 5,000 mAh battery at 3.7 V stores 18.5 Wh (66,600 Joules) of energy.
Q:How much electric charge is transferred during a typical lightning strike?
A typical natural cloud-to-ground lightning bolt transfers between 10 and 25 Coulombs of electric charge in less than a millisecond, resulting in momentary peak currents exceeding 30,000 Amperes.
Q:What is a Microcoulomb (μC) and where do we encounter electrostatic charges?
1 Microcoulomb (μC) equals 10⁻⁶ C (one millionth of a Coulomb). Walking across a carpet on a dry day and touching a metal doorknob typically discharges between 0.5 and 2 μC at several thousand volts, creating an electrostatic discharge (ESD) spark.
Charge converter Table
| Unit | Coulomb (C) | mC | μC | nC |
|---|---|---|---|---|
| 1 Coulomb (C) | 1 | 1,000 | 1,000,000 | 999,999,999.9999999 |
| 1 mC | 0.001 | 1 | 1,000 | 1,000,000 |
| 1 μC | 0.000001 | 0.001 | 1 | 1,000 |
| 1 nC | 0.000000001 | 0.000001 | 0.001 | 1 |