Cost to run a window air conditioner in Colorado

$0.15/hour

Window Air Conditioner at 900 W in Colorado (17.17¢/kWh) · $37.58/month at 8 h/day

By hours of use

Use	Per day	Per month	Per year
1 h/day	$0.15	$4.70	$56.40
2 h/day	$0.31	$9.40	$112.81
4 h/day	$0.62	$18.79	$225.61
8 h/day	$1.24	$37.58	$451.23
12 h/day	$1.85	$56.37	$676.84
24 h/day	$3.71	$112.75	$1,353.68

A 8,000-10,000 BTU window unit draws roughly 700-1,000 W while the compressor runs.

How much does it cost to run a window air conditioner in Colorado?

At 900 W and 17.17¢/kWh: $0.15 per hour, $1.24 per day and $37.58 per month at 8 h/day.

How does Colorado compare with other states?

The same use costs $27.84/month in Nevada (cheapest) and $103.27/month in Hawaii (most expensive); the US average is $39.75.

Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).

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