A typical mini fridge consumes between 100 and 600 watts while actively cooling, with most models averaging around 150–300 watts. The actual electricity usage depends on the fridge's size, insulation quality, compressor efficiency, and how often the door opens.
To estimate monthly consumption, a mini fridge running continuously at an average of 150 watts uses approximately 108 kilowatt-hours (kWh) per month, costing roughly $10–15 depending on local electricity rates. However, mini fridges don't run constantly—they cycle on and off to maintain temperature. In practice, a typical unit might consume 30–40% of its continuous rated wattage over time, bringing real-world monthly usage to 30–50 kWh.
Energy consumption increases if the fridge is poorly insulated, kept in a warm environment, opened frequently, or set to a very cold temperature. Newer models with better insulation and inverter compressors use less electricity than older units. The most efficient mini fridges may use only 100–150 watts during active cooling, while larger or older models can exceed 600 watts.
To reduce consumption, keep the fridge in a cool location away from heat sources, avoid overfilling it, minimize door openings, and ensure the condenser coils stay clean. Checking the yellow EnergyGuide label or manufacturer specifications provides the most accurate estimate for a specific model.