Calculate your cost
Start with a representative input, then edit all three numbers.
This setup uses about 36 kWh in a 30-day month.
Please enter valid values within the ranges shown.
| Schedule | Hours/day | Cost/month |
|---|---|---|
| Half runtime | 4 | $3.39 |
| Starting point | 8 | $6.78 |
| Longer runtime | 12 | $10.17 |
Same 150-watt input and 18.83¢/kWh rate; only runtime changes.
The quick formula
0.15 kW × 8 hours × $0.1883 = $0.23 per day
Convert watts to kilowatts, multiply by the active hours used each day, then multiply by the electricity price in dollars per kWh. Multiply the daily result by 30 for the monthly estimate shown above.
How to read this estimate
A refrigerator is connected all day but its compressor runs only part of the time. The default runtime represents that duty cycle, so multiplying the rated watts by 24 hours would usually overstate normal use.
The starting values keep this page useful before you have a label or meter reading. They do not describe every model, climate, operating mode, or household.
What changes the cost?
- 01
Compressor duty cycle, age, and efficiency
- 02
Kitchen temperature and clearance around the coils
- 03
Door openings, seal condition, and temperature setting
Ways to spend less
- Check that the door gasket seals along its full edge.
- Leave ventilation space and clean accessible condenser coils.
- Let hot food cool safely before placing it inside.