I have been browsing the internet and various forums for a little while now and have been having a hard time to find a clear answer. I am trying to make sure I am calculating this right.

If a miner uses .62w per GH/s and it is a 1000 GH/s miner then the unit is using 620w of energy an hour? Or .62kw/h?

Again I am looking for clarification and appreciate any and all help