How Much Does a Microwave Cost to Run?
A microwave costs approximately $34/year to run at $0.16/kWh. That is $2.80/month or $0.192/hour.
💰 Microwave Running Cost Calculator
Based on 1200W rated power. Actual varies by model and usage.
Microwave Cost at Different Rates
| Rate | Monthly | Annual |
|---|---|---|
| $0.08 | $1.42 | $17 |
| $0.10 | $1.75 | $21 |
| $0.12 | $2.08 | $25 |
| $0.16 | $2.83 | $34 |
| $0.20 | $3.50 | $42 |
| $0.25 | $4.42 | $53 |
| $0.30 | $5.25 | $63 |
| $0.35 | $6.17 | $74 |
Electricity cost to run a Microwave
A typical Microwave draws 1,200 watts when running and operates roughly 0.5 hours per day on average. That works out to 0.60 kWh per day, 18 kWh per month, and approximately 210 kWh per year.
At the US-average residential rate of 16.4 cents per kWh (EIA April 2026), the Microwave costs roughly $34 per year to operate. In cheap-power states like Idaho or Washington at 11 cents, it is closer to $25. In expensive states like California or Massachusetts at 30 cents, it climbs to $53. In Hawaii at 41 cents per kWh, the annual cost is approximately $87.
Annual cost by state rate
| Rate scenario | Rate (c/kWh) | Annual kWh | Annual cost |
|---|---|---|---|
| Idaho, Washington (cheapest) | 11.0 | 210 | $23 |
| Texas, Florida | 14.0 | 210 | $29 |
| US national average | 16.4 | 210 | $34 |
| New York, Connecticut | 25.0 | 210 | $53 |
| California, Massachusetts | 30.0 | 210 | $63 |
| Hawaii (most expensive) | 41.2 | 210 | $87 |
Frequently asked questions
How much electricity does a Microwave use?
A typical Microwave uses about 0.60 kWh per day running 0.5 hours at 1,200W. That works out to roughly 18 kWh per month and 210 kWh per year. Your actual use will vary with how often you run it.
How much does it cost to run a Microwave per month?
At US-average electricity rates (16.4 cents/kWh), running the Microwave costs about $2.95 per month. In low-rate states it can be as little as $1.98; in high-rate states like California, expect closer to $5.40 per month.
What is the annual cost of running a Microwave?
Annual operating cost at US-average rates: approximately $34 per year. The range across US states is roughly $21 (cheapest) to $87 (Hawaii).
How can I reduce the cost of my Microwave?
Check whether your utility offers a time-of-use plan that aligns with this appliance use pattern.
What watt rating should I expect for a Microwave?
Typical running wattage for a Microwave is around 1,200 watts. Specific models vary; check the nameplate label on your unit for exact figures. Common variation is plus-or-minus 20 percent of the typical value.
Microwave Energy Usage Explained
A microwave consumes 1200W. At 0.5 hours/day for 350 days/year, that is 210 kWh annually, about 2.0% of average US household usage (10,500 kWh).
How to Calculate Running Cost
Cost = (Watts ÷ 1000) × Hours × Rate
For your microwave: (1200W ÷ 1000) × 0.5 hrs × $0.16/kWh = $0.10/day.
Tips to Reduce Costs
Use time-of-use electricity plans for off-peak rates ($0.05–$0.10/kWh overnight). Upgrade to Energy Star certified models. Use smart plugs or timers. Check rates in your state with our Electricity Cost Calculator.
Disclaimer: Estimates based on rated wattage. Actual consumption varies by model, age, and usage patterns.