What Does It Cost to Run a Dishwasher in Montana?
Running a dishwasher in Montana costs about $6.26 a month — $76.10 a year — at the state's average rate of 13.90 ¢/kWh. That's roughly $29.67 a year less than a household paying the national average pays for the exact same dishwasher. The estimate assumes a typical 1,500-watt dishwasher running 1 hours/day, at the all-in average rate (before separately billed taxes and fixed fees).
Key metrics
| Metric | Value |
|---|---|
| Average wattage assumption | 1,500 W |
| Typical usage assumption | 1 hours/day |
| Estimated monthly electricity use | 45.0 kWh |
| Estimated monthly cost | $6.26 |
| Estimated yearly cost | $76.10 |
Dishwasher cost vs U.S. average
At the state average rate, a dishwasher in Montana costs $2.44 less a month than it would at the U.S. average rate.
How much electricity does a dishwasher use?
A dishwasher draws roughly 1,200-1,800 W; we use 1,500 watts running 1 hours/day. That comes to 1.50 kWh a day — 45.0 kWh a month, or 547.5 kWh over a year — using kWh = watts × hours ÷ 1000.
Most of a dishwasher's electricity goes to heating water, not spinning the spray arms — so a hot 'sanitize' or 'heated dry' cycle costs noticeably more than a quick eco wash. Montana prices that energy at 13.90 ¢/kWh, against a 19.32 ¢/kWh national average.
Dishwasher operating cost estimate in Montana
| Time period | Energy use | Cost |
|---|---|---|
| Per hour | 1.50 kWh | $0.21 |
| Per day | 1.50 kWh | $0.21 |
| Per month | 45.0 kWh | $6.26 |
| Per year | 547.5 kWh | $76.10 |
These figures use the all-in average rate. Your actual bill can run higher when separately billed taxes, seasonal pricing, and fixed monthly fees apply.
What changes the cost the most?
Two things move this number: your state's rate, which you can't change, and how hard the appliance works, which you often can. For a dishwasher, that mostly comes down to heated dry setting, eco mode, number of cycles per week.
Using yours more lightly or heavily than our assumption? The state calculator and usage-cost pages below model your exact scenario at the same rate.
For calculator-style comparisons, use the Dishwasher calculator in Montana to compare light, typical, and heavy usage profiles.
Comparison entry points
Browse related comparisons from the energy comparison hub:
Related appliance cost pages for Montana
- Refrigerator cost in Montana — Typical 40-100 W estimate with state-specific pricing
- Electric Oven cost in Montana — Typical 2,000-5,000 W estimate with state-specific pricing
- Microwave cost in Montana — Typical 600-1,500 W estimate with state-specific pricing
- Toaster Oven cost in Montana — Typical 1,200-1,800 W estimate with state-specific pricing
State cost and bill pathways for Montana
- Average power price in Montana — What a kWh of electricity costs in Montana
- Montana electricity rates — Core authority page with statewide pricing context
- Electricity cost in Montana — State-level cost, affordability, and value overview
- Montana monthly electricity bill estimate — What a typical monthly bill looks like
- Electric bill estimator scenarios in Montana — Estimate your bill from your monthly usage
- Montana data profile — Machine-readable state profile and metrics
Historical and trend pages
- Historical electricity prices in Montana — Historical context and trend interpretation
- Electricity inflation in Montana — State electricity inflation analysis
- Montana electricity price volatility — Volatility and rate movement profile
Fixed-usage and calculator pathways
- 100 kWh cost in Montana — Cost for this usage amount in the same state
- 300 kWh cost in Montana — Cost for this usage amount in the same state
- 500 kWh cost in Montana — Cost for this usage amount in the same state
- Custom usage calculator for Montana — Custom kWh and scenario cost calculation
Appliance and estimator pathways
- Refrigerator cost in Montana — Appliance operating-cost page for this state
- Refrigerator calculator in Montana — Calculator page for adjusting wattage and usage for this appliance
- Space Heater cost in Montana — Appliance operating-cost page for this state
- Space Heater calculator in Montana — Calculator page for adjusting wattage and usage for this appliance
- Window Ac cost in Montana — Appliance operating-cost page for this state
- Window Ac calculator in Montana — Calculator page for adjusting wattage and usage for this appliance
State comparison pathways for Montana
- Compare Montana with other states — State-to-state comparison hub
- Montana vs California electricity cost — Head-to-head comparison page
- Montana vs Florida electricity cost — Head-to-head comparison page
Discovery and navigation hubs
- Montana electricity hub — Guide to this state's electricity rate, usage, comparison, and tool pages
- Electricity cost scenario hub — Entry point for residential and industry scenario pages
- Montana electricity cost overview — State-level electricity cost page with rates and typical bill context
- Montana average electricity bill benchmark — Typical monthly bill estimate using a standard household usage assumption
- Montana electricity bill estimator — Household profile bill scenarios for this state
- Electricity usage hubs — Browse cost pages by common household usage tiers
Consumer electricity drivers
- Price drivers in Montana — Understand what influences state electricity prices
Source & Method
Source: U.S. Energy Information Administration (EIA) Retail Sales of Electricity. Updated: April 2026. Estimates use the EIA average all-in residential rate (delivery included); they don't add separately billed taxes, fixed charges, or other utility fees, which vary by utility. For how rates and estimates are defined, see the methodology hub.