Calculate your cost
Start with the example below, then replace the wattage, daily runtime, and rate with the numbers for your dishwasher.
This setup uses about 54 kWh in a 30-day month.
Please enter valid values within the ranges shown.
| Schedule | Hours/day | Cost/month |
|---|---|---|
| Half runtime | 0.5 | $5.08 |
| Page example | 1 | $10.17 |
| Longer runtime | 1.5 | $15.25 |
Same 1,800-watt input and 18.83¢/kWh rate; only runtime changes.
Formula for the page example
1.8 kW × 1 hr × $0.1883 = $0.34 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
Water heating and heated drying cause most of a dishwasher's peak draw. A whole-cycle kWh reading is best when you have one; otherwise, treat the wattage and runtime fields as an estimate.
Use this as a baseline until you can check the label or measure the dishwasher directly. Model, settings, condition, climate, and household routine can all change the result.
What changes the cost?
- 01
Cycle duration, water-heating stages, and heated dry
- 02
Incoming water temperature and appliance efficiency
- 03
Load frequency and selected soil setting
Ways to spend less
- Run a full load and choose an appropriate eco cycle.
- Skip heated drying when air drying works for the load.
- Clean the filter so repeated or heavy cycles are less likely.