Calculate your cost
Start with the example below, then replace the wattage, daily runtime, and rate with the numbers for your coffee maker.
This setup uses about 8 kWh in a 30-day month.
Please enter valid values within the ranges shown.
| Schedule | Hours/day | Cost/month |
|---|---|---|
| Half runtime | 0.13 | $0.71 |
| Page example | 0.25 | $1.41 |
| Longer runtime | 0.38 | $2.12 |
Same 1,000-watt input and 18.83¢/kWh rate; only runtime changes.
Formula for the page example
1 kW × 0.25 hr × $0.1883 = $0.05 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
Drip coffee makers heat water quickly to brew a pot. Leaving the warming plate on all morning adds up, so turn it off after brewing.
Use this as a baseline until you can check the label or measure the coffee maker directly. Model, settings, condition, climate, and household routine can all change the result.
What changes the cost?
- 01
Brewing time and water volume
- 02
Use of the built-in warming plate
- 03
Machine wattage
Ways to spend less
- Pour extra coffee into an insulated thermos instead of leaving the hot plate on.
- Brew one large pot rather than multiple small ones.
- Clean the machine regularly to maintain heating speed.