100w by 220v in 12v?

[Joel Bettschen]

I have a 12v to 230v inverter. What is a 100w by 230v load converted to 12v?

 

[DJSmiley]

100/12 = 8.3A

Add inverter losses and you're more like 10A.

If the 100W is the load with an adapter (eg a laptop) the mains load will be higher, add 10-15% if the 100W is not the load on the input side of the device

 

[Joel Bettschen]

thank you so much.

 

[Vigo]

The math DJSmiley did is called Watt's Law. That's what you need to look up so you can repeat this feat ad infinitum.