Electric Current Converter
Convert between different units of electric current instantly with our accurate and easy-to-use tool. Perfect for electrical engineering, physics, and any application requiring current conversions.
Exact Relationships: 1 A = 0.001 kA = 1000 mA = 0.1 Bi = 0.1 abA = 0.1 EMU = 2,997,924,536.8 stA = 2,997,924,536.8 ESU = 0.1 CGS e.m. = 2,997,924,536.8 CGS e.s.
About This Current Converter
Our Electric Current Converter is a precise tool designed to help you effortlessly convert between different units of electrical current. Whether you’re working with amperes, biots, statamperes, or CGS units, 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 all standard and specialized current units including SI, CGS electromagnetic, and CGS electrostatic systems.
Scientific Precision
Handles very small (milliampere) and very large (kiloampere) values with proper decimal handling and scientific notation where needed.
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 current.
Why Choose Our Converter?
- Accuracy: Uses exact conversion factors for reliable results in engineering applications
- Completeness: Covers both SI and CGS unit systems for electric current
- 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 ampere and biot?
The ampere (A) is the SI unit of electric current, while the biot (Bi) is the CGS electromagnetic unit of current. 1 biot equals exactly 10 amperes (1 A = 0.1 Bi). The biot was named after French physicist Jean-Baptiste Biot.
When would I need to use statamperes?
Statamperes (stA) are used in the CGS electrostatic system. 1 statampere ≈ 3.3356×10-10 amperes. These units might be encountered in older physics literature or specialized applications involving electrostatic measurements.
What is EMU of current?
EMU stands for “electromagnetic unit” and is another name for the abampere (abA) or biot (Bi) in the CGS-EM system. 1 EMU of current = 1 abampere = 10 amperes (1 A = 0.1 EMU). This unit was commonly used in early electromagnetic measurements.
How accurate are the conversions between different current units?
The conversions between SI units are mathematically exact. The conversions involving CGS units use exact defined relationships (1 A = 0.1 Bi/abA/EMU and 1 A = 2,997,924,536.8 stA/ESU), so results are precise to the limits of floating-point arithmetic in JavaScript.
Why are there so many different units for electric current?
Different unit systems developed historically for different applications. The SI system (ampere) is now standard, but CGS units (biot, statampere) remain useful in specific contexts like electromagnetism and electrostatics. Our converter helps bridge these different measurement systems.