Electric Charge Converter

Convert between different units of electric charge instantly with our accurate and easy-to-use tool. Perfect for electrical engineering, physics, and any application requiring charge conversions.

Key Relationships: 1 C = 0.000001 MC = 0.001 kC = 1000 mC = 1,000,000 μC = 1,000,000,000 nC = 1,000,000,000,000 pC = 0.1 abC = 0.1 EMU ≈ 2.9979×109 stC ≈ 2.9979×109 ESU ≈ 2.9979×109 Fr = 0.0002777778 Ah = 0.0166666667 A·min = 1 A·s = 0.0000103643 Fd ≈ 6.2415×1018 e

About This Charge Converter

Our Electric Charge Converter is a precise tool designed to help you effortlessly convert between different units of electrical charge. Whether you’re working with coulombs, abcoulombs, statcoulombs, ampere-hours, or elementary charges, this tool provides instant, accurate results.

The converter uses exact conversion formulas to ensure mathematical precision. The interface is optimized for both desktop and mobile use, with real-time conversion as you type for maximum convenience in your electrical engineering or physics work.

Key Features

Comprehensive Unit Coverage

Convert between 16 different charge units including SI units, CGS units, and practical units like ampere-hours.

Scientific Precision

Handles very small (elementary charge) and very large (megacoulomb) values with proper decimal handling.

Real-time Conversion

See conversions immediately as you type, with no need to press any buttons unless you want to.

Educational Reference

Shows the exact conversion formulas and relationships between different units of electric charge.

Why Choose Our Converter?

  • Accuracy: Uses exact conversion factors for reliable results in engineering applications
  • Completeness: Covers SI, CGS, and practical charge units in one tool
  • Speed: Get conversions instantly without page reloads
  • Decimal Precision: Handles very small and very large values perfectly
  • Accessibility: Works on all devices from desktops to smartphones

Frequently Asked Questions

What is the difference between coulomb and abcoulomb?

The coulomb (C) is the SI unit of electric charge, while the abcoulomb (abC) is the CGS electromagnetic unit of charge. 1 abcoulomb equals exactly 10 coulombs (1 C = 0.1 abC). The abcoulomb was commonly used in older electromagnetic systems.

When would I need to use statcoulombs or franklins?

Statcoulombs (stC) and franklins (Fr) are units from the CGS electrostatic system. 1 statcoulomb ≈ 3.3356×10-10 coulombs. These units might be encountered in older physics literature or specialized applications involving electrostatic measurements.

What is an elementary charge?

The elementary charge (e) is the electric charge carried by a single proton or electron. It’s approximately 1.602176634×10-19 coulombs. This is the smallest unit of free charge found in nature.

How accurate are the conversions between different charge units?

The conversions between SI units are mathematically exact. The conversions involving elementary charge use the CODATA recommended value (exact since 2019 redefinition of SI base units). The faraday conversion is based on carbon-12 molar mass.

Why would I need to convert between coulombs and ampere-hours?

Ampere-hours (Ah) are commonly used in battery capacity ratings, while coulombs are used in most electrical calculations. 1 Ah = 3600 C. Converting between these units is essential when working with battery specifications and electrical systems.