How much does a coffee maker cost to run in Montana?
$2.07 a month
- A day of use
- $0.07
- An hour of running
- $0.14
- A year
- $24.87
900 W, 30 minutes a day, including the warming plate, at Montana’s average rate of 15.1¢ per kWh (EIA, June 2026). How we calculate this
Change the watts, hours or rate
What it costs at other usage levels
| Use | A day | A month | A year |
|---|---|---|---|
| 30 minutes a day typical | $0.07 | $2.07 | $24.87 |
| 1 hour a day | $0.14 | $4.14 | $49.73 |
| 2 hours a day | $0.27 | $8.29 | $99.47 |
| 4 hours a day | $0.55 | $16.58 | $198.94 |
| 8 hours a day | $1.09 | $33.16 | $397.88 |
| 24 hours a day | $3.27 | $99.47 | $1,193.64 |
Models range from 600 W to 1,200 W (Virginia Cooperative Extension). We use 900 W, the middle of that range.
Montana compared with other states
Montana’s residential rate is the 16th cheapest of 51 states and DC, 3.2¢ below the US average of 18.3¢ (−17%). Montana’s rate is up 0.3¢ from June 2025 (14.8¢, +2.2%).
Ways to spend less
- Pour the coffee into a thermal carafe and switch the warming plate off. Saves about $1.24 a month.
- Brew only what you will drink.
- Descale it so it heats water faster.
Questions
How much does it cost to run a coffee maker per hour?
About $0.14 an hour in Montana. A coffee maker at 900 W uses 0.900 kWh per hour, and at Montana’s average of 15.1¢ per kWh that comes to $0.14.
How much does a coffee maker add to your electric bill?
Used 30 minutes a day, including the warming plate, about $2.07 a month in Montana, or $24.87 a year.
How much does it cost to run a coffee maker 24 hours a day?
Running nonstop, a coffee maker would use 21.6 kWh a day and cost $3.27 a day, or $99.47 over an average month in Montana.
How many watts does a coffee maker use?
Models range from 600 W to 1,200 W (Virginia Cooperative Extension). We use 900 W, the middle of that range. Check the label on yours: cost scales directly with watts, so a 20% lower wattage means a 20% lower bill.
Why does a coffee maker cost more or less to run in Montana than elsewhere?
Montana’s residential rate is the 16th cheapest of 51 states and DC, 3.2¢ below the US average of 18.3¢ (−17%). Montana’s rate is up 0.3¢ from June 2025 (14.8¢, +2.2%). The appliance uses the same energy everywhere; only the price per kWh changes.
Sources
- Virginia Cooperative Extension: Estimating appliance and home electronic energy use (reproduces U.S. Department of Energy sample wattages)
- Penn State EGEE 102: Typical range of power consumption (wattage)
- Southern California Edison: Appliance energy use
- U.S. Energy Information Administration, Electric Power Monthly, Table 5.6.A: average price of electricity to ultimate customers, residential, June 2026 Figures transcribed from republications of this table on September 26, 2026; pending direct verification from the EIA API.
- Carrier page: June 2026 residential average price, citing EIA Electric Power Monthly Table 5.6.A
Usage assumptions (hours a day, season) are ours and listed on the methodology page. Found an error? Tell us.