Question: how to figure out how many watts your microwave is?
Answer: Check the inside of the oven's door, on the serial number plate on the back of the oven, or in the owner's manual or the manufacturer's website for the wattage. To estimate wattage you can do a "Time-to-Boil Test:" Measure 1 cup (8 fluid ounces) water in a 2-cup glass measure.