Air Purifier Electricity Calculator in North Carolina

A air purifier in North Carolina costs about $1.95 a month ($23.73 a year) to run at the state's average rate of 16.25 ¢/kWh. Use this calculator to compare light, typical, and heavy use.

North Carolina average rate
16.25 ¢/kWh
Assumed wattage
50 W
Typical usage pattern
8 hours/day
Typical monthly cost
$1.95
Typical yearly cost
$23.73

Key metrics

MetricValue
North Carolina average rate16.25 ¢/kWh
Assumed wattage50 W
Typical usage pattern8 hours/day
Typical monthly cost$1.95
Typical yearly cost$23.73

Air Purifier in North Carolina vs U.S. benchmark

North Carolina monthly estimate
$1.95
U.S. monthly estimate
$2.32
Difference
-$0.37
State rate
16.25 ¢/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 energyNorth Carolina monthlyU.S. monthlyNorth Carolina yearly
Light usage4 hours/day73.0 kWh$0.98$1.16$11.86
Typical usage8 hours/day146.0 kWh$1.95$2.32$23.73
Heavy usage12 hours/day219.0 kWh$2.93$3.48$35.59

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 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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