# Are watts and volt-amperes the same thing?

I understand that multiplying the voltage and amp-hours gives me the watt hours.

I also understand that the volt-ampere is apparent power whereas watts are real power.

What is the difference between watts and volt-ampere when working with inverters that take AC and convert it to DC to charge the battery and from DC to AC again?

• This might help you understand the difference between watts and volt-amps. Basically real watts can be volt x amps or, depending on what you multiply, apparent power can also be volt x amps. Jan 15 at 11:22
• Does this answer your question? Why is apparent power not measured in watts? Jan 15 at 11:58
• @datenheim I am still confused. Is there a simple explanation for a layman? Jan 15 at 12:12
• There is no simple explanation for a layman; it's beyond the grasp of a layman without teaching the layman about power factors, RMS vs instantaneous voltages etc.. Jan 15 at 12:23
• Maybe if you give a precise example you stumble upon, one can make it better understandable.... and you still mix Amperes and Ampere*Hours, you should clarify your question/heading, as it are two different things. Jan 15 at 14:23