Go to APCs website. They have a tool for this. Or, find the wattage draw of all your equipment you want to ups, add it up and add 20-25% and find a unit with t

Go to APCs website. They have a tool for this. Or, find the wattage draw of all your equipment you want to ups, add it up and add 20-25% and find a unit with that VA rating, or the next highest. Note that VA has nothing to do with runtime, VA ratings are just the wattage loads the UPS can handle for usually about 15-20 minutes.