How much does it cost to run a warming drawer?
A warming drawer costs about 3.2¢ per hour, 0.9¢ a day, $0.28 a month and $3 a year at typical use (1 hour a day, 2 days a week) and the U.S. average rate of 17.99¢/kWh. Built-in warming drawers use 400-500 W heaters and cycle to hold 140-200°F; buffet servers 200-300 W.
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Cost by hours of use
| Hours per day | kWh/day | Per day | Per month | Per year (all year) |
|---|---|---|---|---|
| 1 hour | 0.05 | 0.9¢ | $0.28 | $3 |
| 2 hours | 0.10 | 1.9¢ | $0.56 | $7 |
| 4 hours | 0.21 | 3.7¢ | $1.13 | $14 |
| 8 hours | 0.41 | 7.4¢ | $2.25 | $27 |
| 12 hours | 0.62 | 11¢ | $3.38 | $41 |
| 24 hours | 1.23 | 22¢ | $6.76 | $81 |
Cost to run a warming drawer in every state
The same warming drawer costs $2 a year in North Dakota and $8 in Hawaii, at each state's average residential rate (12 months ending July 2026).
| State | Rate | Per hour | Per month | Per year |
|---|---|---|---|---|
| North Dakota | 12.32¢ | 2.2¢ | $0.19 | $2 |
| Idaho | 12.65¢ | 2.3¢ | $0.20 | $2 |
| Nebraska | 12.86¢ | 2.3¢ | $0.20 | $2 |
| Louisiana | 12.99¢ | 2.3¢ | $0.20 | $2 |
| Utah | 13.32¢ | 2.4¢ | $0.21 | $3 |
| Nevada | 13.36¢ | 2.4¢ | $0.21 | $3 |
| Arkansas | 13.43¢ | 2.4¢ | $0.21 | $3 |
| Tennessee | 13.56¢ | 2.4¢ | $0.21 | $3 |
| Oklahoma | 13.70¢ | 2.5¢ | $0.21 | $3 |
| Montana | 13.84¢ | 2.5¢ | $0.22 | $3 |
| Kentucky | 13.92¢ | 2.5¢ | $0.22 | $3 |
| Missouri | 13.95¢ | 2.5¢ | $0.22 | $3 |
| Wyoming | 14.01¢ | 2.5¢ | $0.22 | $3 |
| Washington | 14.12¢ | 2.5¢ | $0.22 | $3 |
| Iowa | 14.13¢ | 2.5¢ | $0.22 | $3 |
| South Dakota | 14.20¢ | 2.6¢ | $0.22 | $3 |
| Mississippi | 14.77¢ | 2.7¢ | $0.23 | $3 |
| North Carolina | 14.77¢ | 2.7¢ | $0.23 | $3 |
| Kansas | 15.09¢ | 2.7¢ | $0.24 | $3 |
| Georgia | 15.12¢ | 2.7¢ | $0.24 | $3 |
| New Mexico | 15.32¢ | 2.8¢ | $0.24 | $3 |
| Florida | 15.39¢ | 2.8¢ | $0.24 | $3 |
| Arizona | 15.40¢ | 2.8¢ | $0.24 | $3 |
| West Virginia | 15.48¢ | 2.8¢ | $0.24 | $3 |
| Oregon | 15.50¢ | 2.8¢ | $0.24 | $3 |
| South Carolina | 15.64¢ | 2.8¢ | $0.24 | $3 |
| Texas | 15.96¢ | 2.9¢ | $0.25 | $3 |
| Minnesota | 16.22¢ | 2.9¢ | $0.25 | $3 |
| Alabama | 16.44¢ | 3.0¢ | $0.26 | $3 |
| Virginia | 16.48¢ | 3.0¢ | $0.26 | $3 |
| Colorado | 16.58¢ | 3.0¢ | $0.26 | $3 |
| Indiana | 16.94¢ | 3.0¢ | $0.27 | $3 |
| Delaware | 17.79¢ | 3.2¢ | $0.28 | $3 |
| Ohio | 18.25¢ | 3.3¢ | $0.29 | $3 |
| Wisconsin | 18.74¢ | 3.4¢ | $0.29 | $4 |
| Illinois | 18.79¢ | 3.4¢ | $0.29 | $4 |
| Pennsylvania | 20.70¢ | 3.7¢ | $0.32 | $4 |
| Maryland | 21.03¢ | 3.8¢ | $0.33 | $4 |
| Michigan | 21.05¢ | 3.8¢ | $0.33 | $4 |
| New Jersey | 23.78¢ | 4.3¢ | $0.37 | $4 |
| Vermont | 23.80¢ | 4.3¢ | $0.37 | $4 |
| District of Columbia | 24.20¢ | 4.4¢ | $0.38 | $5 |
| New Hampshire | 26.67¢ | 4.8¢ | $0.42 | $5 |
| Alaska | 26.85¢ | 4.8¢ | $0.42 | $5 |
| Connecticut | 27.99¢ | 5.0¢ | $0.44 | $5 |
| New York | 28.39¢ | 5.1¢ | $0.44 | $5 |
| Rhode Island | 29.27¢ | 5.3¢ | $0.46 | $5 |
| Maine | 29.31¢ | 5.3¢ | $0.46 | $6 |
| Massachusetts | 30.43¢ | 5.5¢ | $0.48 | $6 |
| California | 32.99¢ | 5.9¢ | $0.52 | $6 |
| Hawaii | 43.51¢ | 7.8¢ | $0.68 | $8 |
How to cut the cost
- Preheat only 10-15 minutes before use.
- Use the lowest setting that keeps food above 140°F.
- Keep the drawer closed; it loses heat fast.
Cheaper ways to get the job done
Holds dishes hot for 1-2 hours with no power.
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Compare with similar appliances
| Appliance | Watts | Typical use | Per month | Per year |
|---|---|---|---|---|
| Warming drawer | 450 | 1 hour a day, 2 days a week | $0.28 | $3 |
| Electric oven | 3,000 | 3 hour of bakings a week | $3.75 | $45 |
| Toaster oven | 1,300 | 18 minutes a day | $1.62 | $19 |
| Slow cooker | 200 | 8 hours a day, 2 days a week | $2.00 | $24 |
| Garbage disposal | 500 | 2 minutes a day | $0.08 | $1 |
| Frozen drink maker | 400 | 1.5 hours a day, 1 days a week | $0.33 | $4 |
| Trash compactor | 400 | 1 minutes a day | $0.04 | $1 |
Head-to-head comparisons
Frequently asked questions
How much does it cost to run a warming drawer per hour?
A warming drawer drawing 450 watts uses 0.18 kWh per hour while running (40% duty cycle). At the U.S. average of 17.99¢/kWh that's 3.2¢ per hour. In North Dakota (12.32¢) it's 2.2¢. In Hawaii (43.51¢) it's 7.8¢.
How much does it cost to run a warming drawer per month?
At typical use (1 hour a day, 2 days a week), a warming drawer costs about $0.28 a month and $3 a year, at the U.S. average rate. Enter your ZIP in the calculator above for your utility's rate.
How many watts does a warming drawer use?
Most warming drawers use 200 to 900 watts. Check the label on the back or bottom for your model's exact rating.
How many kWh does a warming drawer use?
About 0.05 kWh a day and 19 kWh a year at typical use (1 hour a day, 2 days a week).
Does a warming drawer use a lot of electricity?
No. At about 19 kWh a year it's a small share (0.2%) of the average U.S. home's 10,492 kWh.
Is it cheaper to run a warming drawer or an electric oven?
At typical use, a warming drawer costs about $3 a year versus $45 for an electric oven. So the warming drawer is cheaper by about $42 a year. Use the comparison table above to compare them at your own settings.
How can I lower the cost of running a warming drawer?
- Preheat only 10-15 minutes before use.
- Use the lowest setting that keeps food above 140°F.
- Keep the drawer closed; it loses heat fast.
Rates updated 2026-10-21: EIA data through July 2026. Typical wattage and usage reviewed against DOE, ENERGY STAR and manufacturer specs. Methodology.