- Enter Current — Type any numeric value.
- Select Units — Choose from 8 current units: A, mA, μA, nA, kA, abA, statA, Bi.
- See Results — Real-time conversion with common current reference.
- Copy — Click 'Copy' to copy result.
Electric Current Converter — Convert Between Current Units
The Electric Current Converter is a free tool for converting between 8 electric current units with a built-in common current reference chart. Whether you're designing circuits, sizing wire gauges, troubleshooting electronics, or studying physics, this tool provides instant accurate conversions.
All calculations run entirely in your browser. No data is sent to any server.
Supported Units
- Ampere (A) — The SI base unit of electric current. Named after André-Marie Ampère. Defined as the flow of one coulomb of charge per second. The practical unit for household circuits, motors, and power systems.
- Milliampere (mA) — One thousandth of an ampere. Standard unit for LED current, sensor outputs, low-power electronics, and battery drain measurements.
- Microampere (μA) — One millionth of an ampere. Used for leakage currents, biomedical measurements (ECG/EEG), and standby power consumption.
- Nanoampere (nA) — One billionth of an ampere. Used for dark current in photodetectors, input bias in op-amps, and ultra-sensitive measurements.
- Kiloampere (kA) — One thousand amperes. Used for lightning currents (30-200 kA), industrial processes like electroplating, and electric arc furnaces.
- Abampere (abA) — The CGS electromagnetic unit of current. 1 abA = 10 A. Used in some theoretical physics contexts.
- Statampere (statA) — The CGS electrostatic unit. 1 statA ≈ 3.336 × 10⁻¹⁰ A. Used in electrostatics.
- Biot (Bi) — Equal to the abampere (10 A). Named after Jean-Baptiste Biot. Used in electromagnetic theory.
Common Current Reference
- LED: 10-20 mA (typical indicator LED)
- USB 2.0: 500 mA max
- USB 3.0: 900 mA max
- Phone charger: 1-3 A (fast charging up to 5A)
- US household outlet: 15 or 20 A circuit
- EV charger Level 2: 30-80 A
- Welding: 50-300 A
- Lightning bolt: ~30,000 A peak
Features
- 8 Units — SI, CGS electromagnetic, and CGS electrostatic.
- Reference Chart — Common currents for everyday devices.
- Real-Time — Instant conversion as you type.
- All-Unit View — See all equivalents simultaneously.
Privacy
All conversions run in your browser. No data is transmitted. Works offline.