Microwave Electricity Calculator in Iowa

A microwave in Iowa costs about $1.25 a month ($15.18 a year) to run at the state's average rate of 13.86 ¢/kWh. Use this calculator to compare light, typical, and heavy use.

Iowa average rate
13.86 ¢/kWh
Assumed wattage
1,200 W
Typical usage pattern
0.25 hours/day
Typical monthly cost
$1.25
Typical yearly cost
$15.18

Key metrics

MetricValue
Iowa average rate13.86 ¢/kWh
Assumed wattage1,200 W
Typical usage pattern0.25 hours/day
Typical monthly cost$1.25
Typical yearly cost$15.18

Microwave in Iowa vs U.S. benchmark

Iowa monthly estimate
$1.25
U.S. monthly estimate
$1.74
Difference
-$0.49
State rate
13.86 ¢/kWh

Calculator assumptions

This calculator uses a typical wattage range of 600-1,500 W, and we assume 1,200 watts for 0.25 hours/day. The formula is kWh = (watts × hours) / 1000.

At this profile, the appliance uses 9.00 kWh per month and 109.5 kWh per year.

Appliance calculator scenarios

ScenarioHours/dayAnnual energyIowa monthlyU.S. monthlyIowa yearly
Light usage0.5 hours/day219.0 kWh$2.49$3.48$30.35
Typical usage0.25 hours/day109.5 kWh$1.25$1.74$15.18
Heavy usage2.25 hours/day985.5 kWh$11.23$15.65$136.59

Appliance cost reference page

Want the full write-up? The appliance page below uses the same rate and wattage assumptions:

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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.

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