Electric Current Converter
Convert between amperes, milliamperes, microamperes, and other current units
About Electric Current
Electric current is the flow of electric charge through a conductor. It is measured in amperes (A), which represents one coulomb of charge flowing past a point per second. Current is one of the seven SI base units.
Applications
- • Electronic circuit analysis
- • Power system calculations
- • Motor and generator specifications
- • Battery charging and discharging
- • Electrochemical processes
- • Electrical safety standards
Typical Current Values
- • LED: 10-20 mA
- • Smartphone charging: 1-3 A
- • Household outlet: 15-20 A max
- • Car starter motor: 100-400 A
- • Lightning: 20,000-200,000 A
- • Microprocessor: 1-100 A
SI Base Unit
The ampere is defined by fixing the numerical value of the elementary charge to be exactly 1.602176634×10⁻¹⁹ coulombs. Current flows from positive to negative terminals by convention, though electrons actually flow in the opposite direction.