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How much does it cost to run a Wi-Fi router?

At the U.S. average residential price of 18.34¢ per kilowatt-hour (June 2026), running a Wi-Fi router costs about $16.07 a year. Your own bill depends on your state's rate, which ranges from 13.11¢ to 52.72¢ across the country.

Per hour
0.2¢
Per day of use
4.4¢
Per month
$1.34
Per year
$16.07

Assumption: 10 W, 24 hours a day, 365 days a year — 88 kWh a year. Router plus modem. Mesh systems multiply this by the number of nodes.

Cost by state

Same appliance, same usage, 51 different prices. Sorted cheapest first.

StateRatePer monthPer year
Nevada13.11¢95.7¢$11.48
Nebraska13.25¢96.7¢$11.61
Utah13.37¢97.6¢$11.71
Louisiana13.49¢98.5¢$11.82
Tennessee14.07¢$1.03$12.33
North Dakota14.12¢$1.03$12.37
Arkansas14.12¢$1.03$12.37
Kentucky14.26¢$1.04$12.49
Oklahoma14.33¢$1.05$12.55
Idaho14.37¢$1.05$12.59
North Carolina14.74¢$1.08$12.91
Mississippi14.88¢$1.09$13.03
Washington14.91¢$1.09$13.06
New Mexico15.06¢$1.10$13.19
Florida15.10¢$1.10$13.23
Montana15.14¢$1.11$13.26
Arizona15.18¢$1.11$13.30
Wyoming15.24¢$1.11$13.35
South Dakota15.36¢$1.12$13.46
West Virginia15.45¢$1.13$13.53
South Carolina15.55¢$1.14$13.62
Kansas15.71¢$1.15$13.76
Iowa15.93¢$1.16$13.95
Texas15.94¢$1.16$13.96
Missouri16.22¢$1.18$14.21
Oregon16.32¢$1.19$14.30
Georgia16.36¢$1.19$14.33
Alabama16.40¢$1.20$14.37
Colorado17.13¢$1.25$15.01
Virginia17.22¢$1.26$15.08
Indiana17.51¢$1.28$15.34
Minnesota17.52¢$1.28$15.35
Ohio19.19¢$1.40$16.81
Delaware19.29¢$1.41$16.90
Wisconsin19.56¢$1.43$17.13
Illinois19.89¢$1.45$17.42
Pennsylvania21.73¢$1.59$19.04
Maryland21.84¢$1.59$19.13
Michigan22.99¢$1.68$20.14
Connecticut24.32¢$1.78$21.30
District of Columbia24.39¢$1.78$21.37
Vermont24.44¢$1.78$21.41
New Jersey24.95¢$1.82$21.86
New Hampshire27.01¢$1.97$23.66
Alaska28.21¢$2.06$24.71
Rhode Island29.23¢$2.13$25.61
New York29.49¢$2.15$25.83
Maine29.59¢$2.16$25.92
Massachusetts29.61¢$2.16$25.94
California34.74¢$2.54$30.43
Hawaii52.72¢$3.85$46.18

Cutting the number down

Questions

How many watts does a Wi-Fi router use?
About 10 W while running.
How much does a Wi-Fi router cost per month?
About $1.34 a month at the U.S. average rate, or $16.07 a year.
Where is it cheapest to run?
Nevada, at $11.48 a year, versus $46.18 in Hawaii — a spread of $34.70.