Question: how much electricity does a convection microwave use?
Answer: An average modern microwave will use around 1200 watts. Click calculate to find the energy consumption of a microwave oven using 1200 Watts for 30 minutes a day @ $0.10 per kWh. In addition to using energy while cooking or heating, a microwave will also use 2 to 7 watts of power while in standby mode.