🍳 Kitchen
How Much Does a Microwave Cost to Run?
At the current U.S. average rate of 18.4¢/kWh (May 2026), a microwave costs about $1.54 per month at typical usage — 0.25 hours/day.
Per hour
$0.20
at 600–1,500 W
Per day
5.1¢
0.25 hours/day
Per month
$1.54
8.4 kWh
Per year
$18.47
100 kWh
Microwaves draw over a kilowatt but run in short bursts, so typical daily use amounts to a few cents. For reheating and small portions, the microwave is nearly always the cheapest cooking appliance in the kitchen.
Calculate it for your home
Per hour
$0.20
Per day
5.1¢
Per month
$1.54
Per year
$18.47
Uses 8.4 kWh/month at 18.4¢ per kWh.
Cheapest and most expensive states
Monthly cost at typical usage, using each state's current average residential rate.
Cost in every state
| State | Rate (¢/kWh) | Per hour | Per month | Per year |
|---|---|---|---|---|
| Idaho | 12.4 | $0.14 | $1.04 | $12.45 |
| Utah | 13.0 | $0.14 | $1.09 | $13.05 |
| Oklahoma | 13.4 | $0.15 | $1.12 | $13.45 |
| Nebraska | 13.6 | $0.15 | $1.14 | $13.65 |
| Nevada | 13.6 | $0.15 | $1.14 | $13.65 |
| North Dakota | 13.6 | $0.15 | $1.14 | $13.65 |
| Missouri | 13.7 | $0.15 | $1.15 | $13.75 |
| Iowa | 14.1 | $0.16 | $1.18 | $14.15 |
| New Mexico | 14.1 | $0.16 | $1.18 | $14.15 |
| Louisiana | 14.2 | $0.16 | $1.19 | $14.25 |
| Arkansas | 14.4 | $0.16 | $1.20 | $14.45 |
| Tennessee | 14.5 | $0.16 | $1.21 | $14.55 |
| Montana | 14.7 | $0.16 | $1.23 | $14.76 |
| Wyoming | 14.8 | $0.16 | $1.24 | $14.86 |
| Kentucky | 15.0 | $0.17 | $1.25 | $15.06 |
| Washington | 15.0 | $0.17 | $1.25 | $15.06 |
| Kansas | 15.1 | $0.17 | $1.26 | $15.16 |
| North Carolina | 15.1 | $0.17 | $1.26 | $15.16 |
| Arizona | 15.2 | $0.17 | $1.27 | $15.26 |
| Florida | 15.2 | $0.17 | $1.27 | $15.26 |
| South Dakota | 15.7 | $0.17 | $1.31 | $15.76 |
| Georgia | 15.8 | $0.17 | $1.32 | $15.86 |
| Colorado | 16.2 | $0.18 | $1.35 | $16.26 |
| Mississippi | 16.2 | $0.18 | $1.35 | $16.26 |
| South Carolina | 16.2 | $0.18 | $1.35 | $16.26 |
| Oregon | 16.3 | $0.18 | $1.36 | $16.36 |
| Texas | 16.4 | $0.18 | $1.37 | $16.46 |
| Alabama | 16.8 | $0.18 | $1.40 | $16.86 |
| West Virginia | 16.8 | $0.18 | $1.40 | $16.86 |
| Minnesota | 17.0 | $0.19 | $1.42 | $17.06 |
| Virginia | 17.6 | $0.19 | $1.47 | $17.67 |
| Indiana | 18.2 | $0.20 | $1.52 | $18.27 |
| Delaware | 19.4 | $0.21 | $1.62 | $19.47 |
| Ohio | 19.5 | $0.21 | $1.63 | $19.57 |
| Wisconsin | 19.7 | $0.22 | $1.65 | $19.77 |
| Pennsylvania | 21.6 | $0.24 | $1.81 | $21.68 |
| Maryland | 21.8 | $0.24 | $1.82 | $21.88 |
| Michigan | 22.0 | $0.24 | $1.84 | $22.08 |
| New Jersey | 23.3 | $0.26 | $1.95 | $23.39 |
| Illinois | 23.9 | $0.26 | $2.00 | $23.99 |
| Vermont | 24.9 | $0.27 | $2.08 | $24.99 |
| Washington, D.C. | 25.4 | $0.28 | $2.12 | $25.50 |
| New Hampshire | 27.3 | $0.30 | $2.28 | $27.40 |
| Connecticut | 27.4 | $0.30 | $2.29 | $27.50 |
| Alaska | 28.2 | $0.31 | $2.36 | $28.31 |
| Maine | 28.6 | $0.31 | $2.39 | $28.71 |
| Massachusetts | 28.8 | $0.32 | $2.41 | $28.91 |
| Rhode Island | 29.5 | $0.32 | $2.47 | $29.61 |
| New York | 29.9 | $0.33 | $2.50 | $30.01 |
| California | 33.3 | $0.37 | $2.78 | $33.42 |
| Hawaii | 52.0 | $0.57 | $4.35 | $52.20 |
How to lower the cost
- Match the appliance to the portion: microwave and air fryer beat the big oven for anything small.
- Keep refrigerator coils clean and gaskets tight — it runs 24/7, so small inefficiencies compound.
- Run the dishwasher full and skip heated dry.
Frequently asked questions
How much electricity does a microwave use?
A typical microwave draws about 1,100 watts in use. At 0.25 hours/day, that works out to roughly 0.3 kWh per day, or 8.4 kWh per month.
How much does it cost to run a microwave for 1 hour?
At the current U.S. average residential rate of 18.4¢/kWh, one hour costs about $0.20. In Idaho (12.4¢/kWh) it's $0.14, while in Hawaii (52¢/kWh) it's $0.57.
How much does a microwave cost to run per month?
With typical usage (0.25 hours/day), expect about $1.54 per month at the U.S. average rate — from $1.04 in Idaho up to $4.35 in Hawaii. Rates are as of May 2026.
Does a microwave use a lot of electricity?
Not really — at typical usage it's under 1% of an average home's monthly consumption. Heating, cooling, hot water, and drying are the loads that move bills.