How much does a coffee maker cost to run in Iowa?
$2.18 a month
- A day of use
- $0.07
- An hour of running
- $0.14
- A year
- $26.17
900 W, 30 minutes a day, including the warming plate, at Iowa’s average rate of 15.9¢ 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 | $2.18 | $26.17 |
| 1 hour a day | $0.14 | $4.36 | $52.33 |
| 2 hours a day | $0.29 | $8.72 | $104.66 |
| 4 hours a day | $0.57 | $17.44 | $209.32 |
| 8 hours a day | $1.15 | $34.89 | $418.64 |
| 24 hours a day | $3.44 | $104.66 | $1,255.92 |
Models range from 600 W to 1,200 W (Virginia Cooperative Extension). We use 900 W, the middle of that range.
Iowa compared with other states
Iowa’s residential rate is the 23rd cheapest of 51 states and DC, 2.4¢ below the US average of 18.3¢ (−13%). Iowa’s rate is up 0.6¢ from June 2025 (15.3¢, +3.9%).
Ways to spend less
- Pour the coffee into a thermal carafe and switch the warming plate off. Saves about $1.31 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 Iowa. A coffee maker at 900 W uses 0.900 kWh per hour, and at Iowa’s average of 15.9¢ 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 $2.18 a month in Iowa, or $26.17 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 $3.44 a day, or $104.66 over an average month in Iowa.
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 Iowa than elsewhere?
Iowa’s residential rate is the 23rd cheapest of 51 states and DC, 2.4¢ below the US average of 18.3¢ (−13%). Iowa’s rate is up 0.6¢ from June 2025 (15.3¢, +3.9%). 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.