How Much Does a Slow Cooker Cost to Run? (2026 Electricity Data)

A slow cooker on its low setting averages about 150 watts. On high it averages 250 watts. A 6-quart programmable model on the warm setting holds steady at roughly 80 watts. The math is the same as for any other appliance: watts × hours ÷ 1,000 × your state rate. The DOE Energy Saver estimator uses that exact formula, and the April 2026 U.S. residential average from the EIA Electric Power Monthly is 18.05¢/kWh. Plug in the setting and the cook time, and you have the answer.

A typical slow cooker on low for 8 hours uses 1.2 kWh and costs $0.22 at the national average. The same 8 hours on high (2.0 kWh) costs $0.36. Most home recipes call for some mix of the two, and 200 watts is the working average across a long cook. That puts a typical 8-hour session at $0.29. Run the slow cooker three times a week for a year, and the total electricity bill is $45.24. Run it five times a week, and it is $75.30. Daily use lands at $8.66 a month or $103.92 a year.

Slow cookers cycle their heating element to hold a target temperature. The wattage on the spec sheet is the maximum draw. The average over a long session is lower. Per the DOE Energy Saver estimator and a working spread across the most common 6-quart units, the numbers land in tight ranges by setting.

Warm (80 watts): 0.64 kWh over 8 hours. $0.12 per session at the national average. Warm is a hold setting, not a cooking setting. Leaving a meal on warm for 4 hours after the cook ends adds about $0.06 to the day. Worth knowing for the smart-plug-with-timer math, not worth panicking about.

Low (150 watts): 1.2 kWh over 8 hours. $0.22 per session. This is the workday-roast setting. A pot of beans, a chuck roast, or a bowl of chili that goes in at 7 a.m. and comes out at 5 p.m. is running at this draw with a cycling element.

High (250 watts): 2.0 kWh over 8 hours. $0.36 per session. Faster cook time with the same recipe. A weekend cook that finishes in 4 hours pulls 1.0 kWh and costs $0.18.

Large or commercial (300 watts): 2.4 kWh over 8 hours. $0.43 per session. An 8-quart programmable unit running on high is the upper end of the home range. Beyond that, you are looking at restaurant equipment, not kitchen appliances.

The full per-appliance breakdown for kitchen wattages, including ranges, microwaves, and countertop electrics, is in the appliance wattage chart.

The most cited claim about slow cookers is that they use about 90% less energy than an oven for the same cooking time. The math behind that claim is straightforward, and it holds up.

An electric oven has a heating element rated 2,500 to 5,000 watts. It does not run that hot continuously. To hold 350°F it cycles, and the average draw across an 8-hour bake lands around 1,500 watts on a typical residential range. That is 12 kWh over the session and $2.17 in electricity at the U.S. average rate. A larger oven, or one running at a higher set point, can average closer to its full nameplate. At 2,500 watts continuous, the same 8 hours uses 20 kWh and costs $3.61.

The slow cooker uses 1.2 to 2.0 kWh for the same 8 hours, depending on setting. The ratio of oven energy to slow cooker energy is 6x to 17x, and the cost ratio mirrors it. A pot roast on the slow cooker costs roughly $0.29. The same pot roast in the oven costs $2.17 to $3.61. Across a year of three long cooks a week, the slow cooker totals $45 and the oven totals $339 to $565. The 90% energy reduction is the median of that range.

Two practical caveats. The oven heats the kitchen, which adds load to the AC in summer and reduces load on the furnace in winter. The slow cooker emits almost no waste heat. In a Texas July, the oven also costs you in cooling. In a Minnesota January, that waste heat is doing some of the heating work the furnace would otherwise do, so the gap closes a little. Neither effect changes the headline math by more than 10 to 15%.

The numbers above use the U.S. national average of 18.05¢/kWh. State rates spread the answer wider than most homeowners realize. The April 2026 EIA Electric Power Monthly puts Louisiana at 12.44¢/kWh and Hawaii at 39.79¢/kWh. Same slow cooker, same hours, three times the cost.

A slow cooker run three times a week for a year (250 kWh):

Louisiana (12.44¢/kWh): $31.10. Texas (~14.8¢/kWh): $37.00. National average (18.05¢/kWh): $45.13. California (~31¢/kWh): $77.50. Hawaii (39.79¢/kWh): $99.48.

A heavier user running the slow cooker five times a week for a year (416 kWh):

Louisiana: $51.75. National average: $75.09. California: $128.96. Hawaii: $165.53.

Even at Hawaii rates with five long cooks a week, the slow cooker tops out near $165 a year. That is less than a refrigerator costs in any state. The electricity rates by state guide has the current 2026 number for every state, and the slow cooker calculator runs the math at your specific rate and cook schedule.

The slow cooker is one of three counter-top long-cook appliances most kitchens have, and the energy profiles are different enough to matter for some recipes.

Slow cooker (200W average, 8-hour cook): 1.6 kWh per session, $0.29 at the U.S. average.

Instant Pot (1,000W peak, 1-hour pressure cook): 0.5 to 0.7 kWh per session, $0.09 to $0.13 at the U.S. average. The Instant Pot draws four to five times the watts of a slow cooker, but the cook time is one-eighth as long. For the same beans or roast, pressure cooking comes out cheaper per session.

Rice cooker (300W average, 35-minute cook): 0.18 kWh per session, $0.03 at the U.S. average. Rice cookers are the cheapest single-cook appliance in the kitchen on a per-meal basis.

Microwave (1,000W, 5 minutes): 0.08 kWh per session, $0.01.

The slow cooker wins on long, low-and-slow recipes that need 6 to 10 hours. The Instant Pot wins when the recipe can be pressure-cooked instead. The rice cooker wins on rice and steamed grains. Microwaves are unbeatable on a per-session basis but cannot do what the other three do. None of them are bill drivers. The full small-appliance list is in the most expensive appliances guide (slow cookers and Instant Pots do not make the list).

Three observations from running the numbers on a slow cooker:

1. The slow cooker is not the line item that moved your electric bill. Running it three times a week costs $45 a year at the national average. Five times a week is $75. Daily use is $104. AC, water heating, and refrigeration are each 3 to 10 times that. The most expensive appliances list confirms which loads actually drive the bill, and a slow cooker is not on it.

2. Use the smallest cooker that fits the meal. A 6-quart unit on high draws roughly twice the watts of a 3-quart unit on the same setting. Most weeknight slow-cooker recipes feed two to four people and fit a 4-quart cooker. Going down a size cuts the per-session cost in roughly half. Across 156 sessions a year that is $20 saved at the U.S. average.

3. The lever that matters is total minutes, not nameplate watts. Doubling the wattage while halving the cook time keeps the kWh constant. The reason the slow cooker is cheap is not that 200 watts is small. It is that the alternative is an oven drawing 1,500 watts on average for the same 8 hours, and 8 hours of 200-watt heat costs less than 8 hours of 1,500-watt heat. If a recipe can be done faster on a different appliance, that appliance often wins. The slow cooker wins specifically when the recipe needs 6 to 10 hours either way.

The slow cooker calculator runs the math at your state's actual rate, with presets for low, high, and warm.

A typical slow cooker run 8 hours on low costs $0.22 per session. The same 8 hours on high costs $0.36. Three sessions a week for a year costs $45.24 at the U.S. average rate. An electric oven cooking for the same 8 hours costs $2.17 to $3.61 per session, six to seventeen times more energy for the same recipe. The slow cooker is the cheapest long-cook appliance in any kitchen.

The slow cooker calculator handles the per-state and per-setting math. The appliance wattage chart shows how a slow cooker compares to everything else plugged into the wall, and the state rates guide has the current 2026 number for where you live.