Use this page to check slow cooker electricity consumption for your own slow cooker: enter your wattage, hours of use per day and electricity rate, and press Calculate. You see your daily, monthly and yearly cost plus your yearly kWh consumption. Those same results also cover slow cooker power consumption.
Wondering what dinner costs before you even plug it in? Slow cooker electricity consumption is modest: a typical crock pot draws somewhere between 60 and 450 watts, so a full day of cooking adds only a few cents to your utility bill. This guide shows you how to find your own wattage, turn it into kilowatt-hours and dollars, and see how it stacks up against an oven. You will also learn what it takes to keep one running through a power outage on backup power.
The honest answer is "it depends on the size, the setting and the hours," but you can pin it down quickly. Most household units are rated between 60 and 450 watts, and because the heating element cycles on and off to hold a steady temperature, the average power draw over a recipe is usually lower than the number printed on the label. That steady, low-level draw is exactly why slow cooking is considered energy efficient compared with heating a full-size oven.
Three terms show up in every electricity calculation, and mixing them up is the most common mistake:
Put simply, slow cooker electricity usage is measured in cents per meal, not dollars. A cooker that averages 165 watts for 9 hours uses about 1.49 kWh, which is less than running a 1,500-watt air fryer for a full hour.
Capacity is the biggest predictor of slow cooker wattage, because a larger insert needs a stronger heating element to warm more food and hold its temperature. The wattage ranges below are planning figures, not a replacement for the rating label on your own appliance.
| Size (quart) | Typical wattage | Common use |
|---|---|---|
| Small, 1.5-3 quart | 60-150 W | Dips, oatmeal, sauces |
| Medium, 4-5 quart | 120-250 W | Soup, chili, shredded chicken |
| Large, 6-8 quart | 200-350 W | Family stew, meal prep |
| Extra-large, 9-10 quart | 300-450 W | Parties, big batches |
Small slow cookers pull the least power and heat the least food, so total energy use over a full recipe stays very low. They are easy to run from an ordinary outlet or a modest battery.
Medium slow cookers are the sweet spot for many kitchens, balancing capacity against energy consumption. A 5-quart unit is a good default if you are not sure which model you own.
Large slow cookers suit pot roast, stew and weekend meal prep. Their higher wattage mostly helps the bigger insert warm up, not cook faster.
Extra-large slow cookers can exceed 400 watts. More wattage does not mean better cooking, since slow cooking relies on steady, controlled heat rather than raw power.
Every estimate comes from the same two-step calculation: convert watts and hours into energy, then multiply by what your utility charges.
$$\text{Energy (kWh)} = \frac{\text{Watts} \times \text{Hours}}{1{,}000}$$ $$\text{Cost} = \text{Energy (kWh)} \times \text{Price per kWh}$$Use the average watts if you have measured them and the rated watts as a ceiling if you have not. Your electricity rate is on your bill, and a state-by-state list of global electricity prices and residential averages is a handy cross-check.
Many labels list current instead of power. In a US kitchen the outlet supplies 120 volts, so multiply: \(\text{Watts} = \text{Volts} \times \text{Amps}\). A model stamped 1.8 amps therefore tops out at 120 × 1.8 = 216 watts.
Unplug the cooker, let it cool, and turn the base over. The rating label shows voltage, frequency and either amps or watts. If only amps appear, use the amps to watts conversion above.
Here is a complete slow cooker cost to run example with numbers you can reuse. Your 5-quart model is rated 216 watts, but a plug-in meter shows it averages 165 watts across a 9-hour recipe on the low setting, and your electricity rate is $0.2140 per kWh.
If that pot feeds four people, the electricity cost per meal works out to roughly 8 cents a serving. That is why the cost to run a slow cooker barely registers on a monthly electricity bill.
Cook four times a week for a year and you run it 208 times: 208 × 1.485 kWh is about 309 kWh, or $66.10 in annual operating cost. Even a heavy user rarely breaks $70. Keep that in perspective: the electricity usage of a slow cooker is tiny next to a refrigerator or a water heater, so a crock pot is rarely the appliance to blame when your bill jumps. If you ever want to find the real culprits, compare the figure with the rest of your household in a home energy audit.
Many people assume the high setting doubles the bill. In practice, both settings aim for a similar final temperature; the high setting simply reaches it sooner and cycles the thermostat more often, while the low setting draws less at a time but runs for more hours.
Using the same 5-quart pot, a 5-hour recipe on high averaging 235 watts uses 1.175 kWh ($0.25), against 1.485 kWh ($0.32) for 9 hours on low. The difference is real but small, so choose by recipe and food safety, not by chasing a lower electricity cost.
A crock pot looks even better beside the alternatives, and it does so without needing you to hover over the stove. The table prices one typical session for each appliance at the same $0.2140 electricity rate, assuming the oven element is on about 60% of the time.
| Appliance | Wattage | Cooking time | Energy | Cost |
|---|---|---|---|---|
| Slow cooker (5-quart) | 165 W average | 9 hours | 1.485 kWh | $0.32 |
| Electric oven | 2,300 W | 3 hours | 4.14 kWh | $0.89 |
| Instant Pot pressure cooker | 1,000 W | 1.25 hours | 0.875 kWh | $0.19 |
| Air fryer | 1,500 W | 30 minutes | 0.75 kWh | $0.16 |
| Induction cooktop | 1,400 W | 1 hour | 1.40 kWh | $0.30 |
| Microwave | 1,100 W | 15 minutes | 0.275 kWh | $0.06 |
A multicooker or pressure cooker draws about 1,000 watts, yet it finishes a pork shoulder in a fraction of the time, so its total energy can undercut the slower pot. The trade-off is texture: some cooks find long braises come out better, and others complain that extended slow cooking turns food mushy.
Short-burst appliances such as the microwave and air fryer use big wattage for little time. A stove burner or induction cooktop sits in between. For all-day recipes, nothing beats the slow cooker on energy draw per hour, while the electric oven is the clear loser.
Rated wattage is only the starting point. Fill level, lid use and cook time all change your average watts and kWh per cook, and they decide how much energy efficiency you actually get from a crock pot compared with the number printed on the box. Next, look at sewage pump power consumption.
Cold meat and dense vegetables keep the element on longer during the first hour, which adds a few percent to total kWh. The starting temperature of your ingredients therefore matters, and good heat retention from a thick ceramic insert lets the thermostat switch the element off more often afterward, pulling the average watts down.
Most pots run best filled halfway to three-quarters full. A mostly empty oversized cooker spreads the same wattage over fewer servings, raising kWh per meal, and every lid lift costs several minutes of extra element time to recover the lost heat. Keep the lid on.
Because the thermostat regulates the heating element, wattage on the label is a ceiling, not a constant. The longer the cooking time, the more the average drops below the rated figure.
A plug-in watt meter is the most accurate way to learn your real numbers, and it takes five minutes to set up. Related: electric car power consumption.
Enter the average watts from the meter into the formula above for your true cost per cook. A full home energy audit uses the same idea across every device, so a meter on the slow cooker is a cheap first step.
Because the load is small, a crock pot or any similar slow cooker is one of the easiest kitchen appliances to run from batteries during a blackout. You can also check stand mixer power consumption.
During a power outage, the inverter must handle the startup surge, so choose one rated comfortably above 400 watts. Then match the battery capacity in watt-hours to your cooking time.
A 1,500 Wh power station delivers roughly 1,275 Wh after conversion losses at 85% efficiency. At 165 watts that is about 7.7 hours, enough to run overnight on low if the recipe is short. Pair a larger power station with a medium-sized cooker for a full day.
It is already one of the cheapest ways to cook, but a few habits shave the electricity bill further.
Replacing a weekly 3-hour oven braise with the slow cooker saves about $0.57 per cook ($0.89 vs $0.32), or roughly $118 a year at 208 cooks, with the added comfort of keeping the kitchen cool. In a single recipe like pork shoulder, the saving looks small, but it compounds.
If you are short on time, the pressure cooker wins on electricity too: 0.875 kWh per meal against 1.485 kWh for the slow cooker in the table above. The slow cooker still earns its place for hands-off, all-day cooking, and either one costs far less than the 4.14 kWh the oven needs. Use the numbers to confirm that electricity cost is not the deciding factor.
Never lower the setting purely to cut cost. Safe temperatures and recipe times matter more than the few cents of electricity the high setting adds.