Enter a current value and choose the units to convert between amps and its kilo-, milli-, and microamp multiples.
How to Use the Electric Current Conversion Calculator
Enter a current value, select its unit, then select the unit to convert into — kiloamps, amps, milliamps, or microamps. The result field updates on every keystroke, and Swap Units flips the from/to selection instantly.
Current spans an unusually wide range in daily life, wider than most electrical quantities. A phone charger draws under an amp; a household clothes dryer pulls 20–30 amps; a lightning bolt peaks at tens of kiloamps for a few dozen microseconds. A single unit — the amp — has to describe all of it, which is why the prefix scale matters here more than almost anywhere else in this category.
base value (A) = entered value × from-unit factor
result = base value ÷ to-unit factor
1 kA = 10³ A
1 mA = 10⁻³ A
1 µA = 10⁻⁶ AMicroamps show up constantly in places most people never think about: a smoke detector's standby draw, a resting heart's bioelectric signal picked up by an ECG lead, the leakage current across a capacitor's dielectric. Milliamps cover most consumer electronics and LED circuits. Kiloamps are reserved for genuinely large events — short-circuit fault currents, arc welding, lightning — situations where an ordinary breaker's rating, measured in single- or double-digit amps, would barely register.
Mixing these up isn't a small mistake. Read a datasheet's "20 mA max" as "20 A max" and a circuit designed for LED-scale current gets fed a thousand times too much.