How much does a rice cooker cost per month in South Dakota?

About 53.8¢ a month, assuming 700 W at a 40% duty cycle, 45 minutes a day, 200 days a year at 15.37¢/kWh.

How many kilowatt-hours does a rice cooker use?

Roughly 42 kWh a year under these assumptions, or 0.28 kWh for every hour it runs.

Is that expensive compared with other states?

South Dakota has the 18th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $7.69 a year.

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Cost to run a rice cooker in South Dakota (July 2026 rates)

At 15.37¢ per kilowatt-hour — South Dakota's average residential price in July 2026 — running a rice cooker costs $6.46 a year. That is 16% less than the national average of $7.69. South Dakota's residential rate is up 5.9% from July 2025, which moves this appliance from $6.10 to $6.46 a year.

Per hour: 4.3¢
Per day of use: 3.2¢
Per month: 53.8¢
Per year: $6.46

Assumption: 700 W at a 40% duty cycle, 45 minutes a day, 200 days a year — 42 kWh a year. Full draw while heating, then a low-power keep-warm hold. Use the calculator to swap in the numbers from your own model.

How South Dakota compares

South Dakota pays 15.37¢/kWh, the 18th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $1.23 less a year than the typical U.S. household pays for the same use. Running the same rice cooker costs $5.34 a year in Louisiana and $20.16 in Hawaii, so where you live changes this bill by $14.82 a year.

State	Rate	Per month	Per year
North Carolina	15.16¢	53.1¢	$6.37
Kansas	15.27¢	53.4¢	$6.41
South Dakota	15.37¢	53.8¢	$6.46
Arizona	15.38¢	53.8¢	$6.46
South Carolina	15.47¢	54.1¢	$6.50

States ranked by average residential price, cheapest first. See all 51 states for a rice cooker.

What else costs about the same in South Dakota

Electric pressure cooker$6.46 a year in SD Electric lawn mower$6.39 a year in SD Security camera$6.73 a year in SD

Cutting the number down

Keep-warm is a small draw that runs for hours. Switching it off once the rice is done is the only real lever here.

Questions

How much does a rice cooker cost per month in South Dakota?: About 53.8¢ a month, assuming 700 W at a 40% duty cycle, 45 minutes a day, 200 days a year at 15.37¢/kWh.
How many kilowatt-hours does a rice cooker use?: Roughly 42 kWh a year under these assumptions, or 0.28 kWh for every hour it runs.
Is that expensive compared with other states?: South Dakota has the 18th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $7.69 a year.