Transformer 110/220? the flat current is 110 while my appliances are 220 50/60, I...

the flat current is 110 while my appliances are 220 50/60, I understand that I need to buy a transformer but at what dimensions? some of the appliances are 2000 watt. in total i need a transformer that can operate appliances operating at equal time at 6000 watts per hour. how does this amount of 6000 watts relate to amp.
I think i need to buy a transformer at a high capacity to avoid it becoming overheated, but at what capacity?
How far does the copper tubing obligation to...
Answers:    Watts=Volts x Amps or Amps= Watts / Volts. Most appliances can be optioned for any 120 or 240