Translate the current in power is impossible if one unknown parameter - voltage.If the latter is known, and in most cases this is the case, use the following formula:

P = UI, where P - is the power (W), U - voltage (V), I - current (A).
If the voltage is variable, its current use, rather than the peak value.It is in most cases indicated.If the specified peak value of the voltage that is very rarely put it into action, dividing the square root of two (approximately 1.41, which is enough for most practical purposes).
power as a result of the calculation will in watts.If you need its value in kilowatts, dividing it by one thousand.
Sometimes the inverse problem: determine the current in t
he circuit, knowing the power and voltage, to select the plugs and sockets, the machine, the counter, etc.In this case, use the back of the formula:

I = P / U.
If the power is expressed in kilowatts, previously it is in watts, multiply by a thousand.The voltage and current use.
In case, if the voltage is expressed in kilovolts, get the value in volts by multiplying by a thousand banal does not always work.Very often it are rounded.Remember, for example, that the common designation of 0.4 kV has two meanings.In Russia it is - 380, and in Europe - 400. However, most of the load, designed to work in Europe will operate at a slightly reduced voltage and in Russia.The reverse compatibility is not guaranteed.
No matter what kind of operation you performed - the translation of the current in the power, or vice versa, never overload the audio cables, or any wiring accessories.It threatens overheating, failure and even fire.