Unit Conversion

Convert numbers between two units quickly and precisely

Current

Unit Conversion

Convert current units: ampere, milliampere, and kiloampere

Electrical current is measured in ampere (A), the SI unit. For small currents in electronics, microampere (µA) and milliampere (mA) are common; for industrial applications, kiloampere (kA).

Key conversion factors:

  • 1 ampere (A) = 1,000 milliampere (mA) = 1,000,000 microampere (µA)
  • 1 kiloampere (kA) = 1,000 ampere

Applications:

  • Electronics: power consumption of devices in the milliampere range
  • Household electricity: fusing of circuits in ampere
  • Industry: welding currents and motor loads in the kiloampere range

The current converter supports calculating electrical loads and sizing fuses. For battery capacities (current over time), use the charge converter.

Frequently asked questions about converting current

1 ampere (A) equals 1,000 milliampere (mA) and 1,000,000 microampere (µA). The power consumption of small electronic devices is usually given in milliampere.

Kiloampere (kA, 1 kA = 1,000 A) occurs with very high currents, such as industrial short-circuit currents, welding equipment, or lightning strikes, which can typically reach several tens of kiloamperes.

Current is charge per time (I = Q/t), measured in amperes = coulombs per second. For the reverse calculation – how much charge flows over a given time at a constant current – use our charge converter.