Calculate your cost
Start with the example below, then replace the wattage, daily runtime, and rate with the numbers for your mini fridge.
This setup uses about 19 kWh in a 30-day month.
Please enter valid values within the ranges shown.
| Schedule | Hours/day | Cost/month |
|---|---|---|
| Half runtime | 4 | $1.81 |
| Page example | 8 | $3.62 |
| Longer runtime | 12 | $5.42 |
Same 80-watt input and 18.83¢/kWh rate; only runtime changes.
Formula for the page example
0.08 kW × 8 hr × $0.1883 = $0.12 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
Compact refrigerators have less insulation than full-size models, meaning they often run their compressors more frequently to stay cold.
Use this as a baseline until you can check the label or measure the mini fridge directly. Model, settings, condition, climate, and household routine can all change the result.
What changes the cost?
- 01
Age and Energy Star rating
- 02
Freezer compartment inclusion
- 03
Ambient temperature
Ways to spend less
- Defrost manually if ice builds up.
- Keep it away from direct sunlight.
- Set the dial just cold enough for drinks, not maximum.