How many watts does a slow cooker use?
Updated
Running watts
250 W
Starting watts
250 W
Energy per day
2.0 kWh
A slow cooker typically draws about 250 watts while running. At about 8 h of use a day, that is roughly 2.0 kWh per day. These are typical values from generator wattage charts: the label on your own appliance (or its EnergyGuide sticker) gives the exact figure.
What size generator do I need for a slow cooker?
Plan for at least 300 W: 250 W to get through the start-up surge, plus a 20% margin so the generator never runs flat out. Of the common sizes, a 2,000 W generator is the smallest that fits.
| Generator | Can it run a slow cooker? |
|---|---|
| 2,000 W | Yes |
| 3,500 W | Yes |
| 5,000 W | Yes |
| 7,500 W | Yes |
| 10,000 W | Yes |
| 15,000 W | Yes |
How long will a power station run a slow cooker?
Running continuously at 250 W, assuming 85% of the battery is usable. The station's AC output must also handle the 250 W start-up surge.
| Battery capacity | Runtime |
|---|---|
| 1,000 Wh | about 3 h |
| 2,000 Wh | about 7 h |
| 3,600 Wh | about 12 h |
Running more than one appliance?
Starting surges don't add up the way running watts do. Pick everything you want to power to get your real number.
Open the Generator Size Calculator for Your HomeFrequently asked questions
What size generator do I need to run a slow cooker?
At least 300 W: 250 W to cover the start-up surge, plus a 20% safety margin.
Can a 2,000 watt generator run a slow cooker?
Yes. 2,000 W covers its 250 W starting surge with room to spare.
Can a 3,500 watt generator run a slow cooker?
Yes. 3,500 W covers its 250 W starting surge with room to spare.
How long will a 1,000 Wh power station run a slow cooker?
About 3 h, assuming 85% usable capacity, as long as the station's AC output is rated for 250 W of surge.
Never run a generator indoors or in a garage: see the CPSC safety guide.