You can't directly convert "K" to milliamperes (mA). "K" is an abbreviation that can stand for different things, depending on the context.

Here's why:

* Kilo (K): This is a metric prefix meaning "thousand". So, 1K could mean 1 kilohertz (kHz), 1 kilowatt (kW), 1 kilobyte (KB), etc. To convert these to milliamperes, you need to know the relationship between the unit and current.

* Other meanings: "K" could also be a symbol in a specific context, like a variable in an equation.

To answer your question, you need to specify what "K" stands for.

For example:

* If "K" stands for kiloamperes (kA): Then 1K = 1 kA = 1000 A = 1,000,000 mA

* If "K" stands for something else, you need to provide more information.

Let me know what "K" represents, and I can help you convert it to milliamperes.