Air Purifier Electricity Calculator in Idaho

A air purifier in Idaho costs about $1.52 a month ($18.54 a year) to run at the state's average rate of 12.70 ¢/kWh. Use this calculator to compare light, typical, and heavy use.

Idaho average rate
12.70 ¢/kWh
Assumed wattage
50 W
Typical usage pattern
8 hours/day
Typical monthly cost
$1.52
Typical yearly cost
$18.54

Key metrics

MetricValue
Idaho average rate12.70 ¢/kWh
Assumed wattage50 W
Typical usage pattern8 hours/day
Typical monthly cost$1.52
Typical yearly cost$18.54

Air Purifier in Idaho vs U.S. benchmark

Idaho monthly estimate
$1.52
U.S. monthly estimate
$2.32
Difference
-$0.79
State rate
12.70 ¢/kWh

Calculator assumptions

This calculator uses a typical wattage range of 25-100 W, and we assume 50 watts for 8 hours/day. The formula is kWh = (watts × hours) / 1000.

At this profile, the appliance uses 12.0 kWh per month and 146.0 kWh per year.

Appliance calculator scenarios

ScenarioHours/dayAnnual energyIdaho monthlyU.S. monthlyIdaho yearly
Light usage4 hours/day73.0 kWh$0.76$1.16$9.27
Typical usage8 hours/day146.0 kWh$1.52$2.32$18.54
Heavy usage12 hours/day219.0 kWh$2.29$3.48$27.81

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 all-in average residential rate — energy, delivery, fixed charges, and utility fees together, not just the electricity itself. Fees are inside the rate, not an extra on top; how your own bill splits fixed versus per-kWh charges varies by utility. For what's inside the all-in rate, see hidden electricity fees; for how rates and estimates are defined, see the methodology hub.

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