Window AC Electricity Calculator in District of Columbia

A window ac in District of Columbia costs about $54.89 a month ($667.77 a year) to run at the state's average rate of 25.41 ¢/kWh. Use this calculator to compare light, typical, and heavy use.

District of Columbia average rate
25.41 ¢/kWh
Assumed wattage
900 W
Typical usage pattern
8 hours/day
Typical monthly cost
$54.89
Typical yearly cost
$667.77

Key metrics

MetricValue
District of Columbia average rate25.41 ¢/kWh
Assumed wattage900 W
Typical usage pattern8 hours/day
Typical monthly cost$54.89
Typical yearly cost$667.77

Window AC in District of Columbia vs U.S. benchmark

District of Columbia monthly estimate
$54.89
U.S. monthly estimate
$41.73
Difference
+$13.15
State rate
25.41 ¢/kWh

Calculator assumptions

This calculator uses a typical wattage range of 500-1,500 W, and we assume 900 watts for 8 hours/day. The formula is kWh = (watts × hours) / 1000.

At this profile, the appliance uses 216.0 kWh per month and 2628.0 kWh per year.

Appliance calculator scenarios

ScenarioHours/dayAnnual energyDistrict of Columbia monthlyU.S. monthlyDistrict of Columbia yearly
Light usage4 hours/day1314.0 kWh$27.44$20.87$333.89
Typical usage8 hours/day2628.0 kWh$54.89$41.73$667.77
Heavy usage12 hours/day3942.0 kWh$82.33$62.60$1001.66

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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