How much does it cost to run a microwave? ($2.55/mo)
Running a microwave costs about $2.55 / month
($0.09/day at 0.5 h/day, $0.17/kWh).
($0.09/day at 0.5 h/day, $0.17/kWh).
Running cost calculator
Per hour—
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Energy/mo—
A microwave pulls high power but only in short bursts, so even a 1000 W model adds little to your monthly bill.
Cost at different electricity rates
| Electricity rate | Per day | Per month | Per year |
|---|---|---|---|
| $0.10/kWh | $0.05 | $1.50 | $18.25 |
| $0.15/kWh | $0.08 | $2.25 | $27.38 |
| $0.20/kWh | $0.10 | $3.00 | $36.50 |
| $0.25/kWh | $0.13 | $3.75 | $45.63 |
| $0.30/kWh | $0.15 | $4.50 | $54.75 |
| $0.40/kWh | $0.20 | $6.00 | $73.00 |
Cost over time
| Per hour of use | $0.17 |
| Per day (0.5 h) | $0.09 |
| Per month | $2.55 |
| Per year | $31.03 |
How to spend less running a microwave
- Cut the hours: A microwave at 0.5 h/day runs about $2.55/month — trimming one hour saves roughly $5.10/month.
- Right-size the job: a lid, eco mode or a smaller appliance for small portions all trim the cook.
- Upgrade efficiency: a newer microwave near 600 W uses far less than an old 1,200 W one.
- Kill standby: a smart plug or timer removes the ~3 W it draws even when off.
Want the raw figure? See how many watts a microwave uses.
FAQ
How many watts does a microwave use?
Cooking power is typically 600-1200 watts; the unit draws a bit more from the wall while running.
Does a microwave use power when off?
Yes - the clock and panel draw around 3 watts on standby, which is tiny but constant.