What size generator or power station for a microwave? (1,250+ W)
To run a microwave, choose at least
1,250 W running.
1,250 W running.
A microwave draws about 1,000 W while running. Pick a generator, inverter or power station rated comfortably above these numbers.
Battery runtime calculator
Estimated runtime—
Assumes about 85% usable capacity. Motors need extra headroom for startup surge.
How long a power station lasts
| Power station | Estimated runtime |
|---|---|
| 300 Wh | 0 h 15 min |
| 500 Wh | 0 h 26 min |
| 1,000 Wh | 0 h 51 min |
| 2,000 Wh | 1 h 42 min |
| 3,000 Wh | 2 h 33 min |
Sizing guide
| Minimum running watts | 1,250 W |
| Minimum starting watts | 1,250 W |
| Suggested inverter | 1,300 W or higher |
See also microwave wattage and running cost.
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.