Refrigerator electricity cost calculator
Estimate refrigerator or freezer running cost while accounting for compressor cycling rather than assuming full power all day.
Transparent method
The calculation
Monthly kWh = rated kW × 24 hours × days × compressor duty cycleRefrigerators stay connected continuously but their compressors cycle. Use rated input with an active-runtime assumption, or convert annual label consumption into a daily average.
Read the full methodology →Sensitivity check
Run three scenarios.
01
Efficient or cool roomTest a 25% compressor duty cycle.
02
Typical householdStart around 35% and compare with the energy label.
03
Hot room or older unitTest 50% active runtime.
Use the result well
What can change the answer?
- Door opening, ambient temperature, frost, seals, and ventilation affect cycling.
- Defrost heaters can add intermittent load.
- An annual energy label is often a better starting point than compressor wattage.