Current Converter

The Current Converter is a free online tool that converts electric current between amperes (A), milliamperes (mA) and kiloamperes (kA) instantly. No sign-up needed — enter a value, choose your units, and get an accurate result. It's a useful reference when comparing component ratings, fuse sizes, or power supply specifications.

What is electric current?

Electric current measures the flow of electric charge through a conductor, expressed in amperes. Small electronic devices are often rated in milliamps, while industrial equipment and power distribution may use kiloamps. Converting between these units helps students, hobbyists and electricians read datasheets and specifications correctly. Mixing up amps and milliamps is a common source of wiring and component-selection mistakes, so a quick conversion check can prevent costly errors.

How to use the Current Converter

1. Enter the current value you want to convert.
2. Select the starting unit — amps, milliamps, or kiloamps.
3. Click Calculate to see the result in the other units.

Key features

• Covers amperes, milliamperes and kiloamperes with precise scaling.
• Useful for circuit design, electronics projects, and coursework.
• Instant, accurate two-way conversion.
• Free, browser-based, no installation required.

Related tools

Also working with electrical values? Try the Voltage Converter, Power Converter, or Charge Converter.

Frequently asked questions

Is the Current Converter free?

Yes, it's completely free with no sign-up required. You can use it for as many circuits or components as your project requires.

How many milliamps are in an amp?

One ampere equals 1,000 milliamperes. This same 1,000x scaling applies between kiloamps and amps as well.

What is a kiloampere used for?

Kiloamps typically describe very large currents, such as those found in industrial power systems, lightning strikes, or fault current calculations. Correctly sizing equipment for kiloamp-level currents is critical for electrical safety in these high-power settings.

Can this help with electronics projects?

Yes, it's handy for converting component and power supply ratings between amps and milliamps when reading datasheets. It also helps when comparing charging currents across different phone, laptop, and battery specifications.