Electric Current ConverterConvert between amperes, milliamperes, microamperes, and kiloamperes.
Electric Current Converter
Convert between amperes, milliamperes, microamperes, and kiloamperes.
Enter current
Type the electric current value.
Select units
Choose source and target current units.
Get the result
Converted current appears instantly.
What Is Electric Current Converter?
An electric current converter translates between different scales of the ampere, the SI base unit of electric current. One ampere represents one coulomb of charge passing a point per second. Milliamperes (mA) and microamperes (µA) are used for small electronic circuits and sensors, while kiloamperes (kA) describe the massive currents in power systems and lightning. Understanding current magnitudes is important for circuit design, electrical safety, and electronics troubleshooting.
Why Use Our Electric Current Converter?
- Covers the full range from microamperes to kiloamperes.
- Essential for electronics and electrical engineering.
- Simple, fast conversion.
- Real-time bidirectional input.
Common Use Cases
Electronics
Convert between mA and µA for sensor readings and circuit design.
Electrical Engineering
Convert between A and kA for power system specifications.
Battery Life
Convert between mA and A for battery capacity calculations (mAh to Ah).
Safety
Understand current magnitudes for electrical safety assessments.
Technical Guide
The ampere (A) is the SI base unit of electric current. Since 2019, it is defined by fixing the elementary charge e = 1.602176634 × 10⁻¹⁹ coulombs. • 1 kA = 1,000 A • 1 A = 1,000 mA • 1 mA = 1,000 µA Typical currents: • Smartphone standby: ~5-50 mA • USB charging: 500 mA (USB 2.0) to 3 A (USB-C PD) • Household circuit breaker: 15-20 A • Car starter motor: 100-300 A • Lightning bolt: ~20-200 kA (peak) Safety: As little as 10 mA of current through the heart can be fatal. Household voltages can easily drive lethal currents through the body.
Tips & Best Practices
- 11 A = 1,000 mA = 1,000,000 µA. Simple decimal shifts.
- 2Dangerous current: as little as 10 mA across the heart can be lethal.
- 3Battery capacity: a 5,000 mAh battery can deliver 5 A for 1 hour (theoretically).
- 4USB-C Power Delivery can provide up to 5 A at 20V (100W).
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Unit ConvertersFrequently Asked Questions
QHow many milliamps in an amp?
QWhat is a dangerous level of current?
QWhat current does a typical USB port provide?
QWhat is a kiloampere used for?
About Electric Current Converter
Electric Current Converter is a free online tool from FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration required. No ads. Just fast, reliable tools.