How Much Does It Cost to Run an Electric Oven?
About $0.27 an hour for a standard 2,500W oven at the 2024 US average rate of $0.16/kWh — and about $0.21 for a typical 45-minute cook. Use it 4 nights a week and it costs $3.67 a month, or $44 a year. That is well under what a watts-times-hours estimate would tell you, because the element spends most of a cook switched off. Set your own oven, cook time and rate below.
Door closed to door open, preheat included — the first 12 minutes are the expensive ones.
Cost per cook
$0.21
1.33 kWh for 45 minutes at $0.16/kWh
Cost per year, 4 cooks a week
$44.10
276 kWh a year — about $3.67 a month
Average draw
1,767W
Not 2,500W — the element cycles
Spent on preheat
38%
of this cook's 1.33 kWh
One self-clean cycle
$0.96
6.0 kWh — about 4.5 normal cooks
A naive “watts × hours” sum would put this cook at 1.88 kWh, or $0.30 — 42% too high. The element only runs flat out for the 12-minute preheat. After that the thermostat cycles it on and off, and it is energised roughly 60% of the time.
Compare against a gas oven
The same cook in a gas oven burns about $0.14of gas against your electric oven's $0.21. Over a year that is $29.76 against $44.10 — gas is $14.33 a year cheaper to run. A difference this size will not repay the cost of changing which fuel your kitchen is plumbed for.
Assumes 12 minutes of full-power preheat, then a 60% duty cycle while the oven holds temperature, and a 3-hour self-clean cycle at a higher duty. Those are transparent modelling assumptions, not lab measurements — a well-insulated oven cycles less and will cost less than shown. The gas comparison prices an 18,000 BTU/hr bake burner on the same on-time. Not sure of your rate? Check average rates by state.
What an hour in the oven actually costs
Cost = (preheat at full power + cooking time × duty cycle) × kW × price per kWh
An oven is a box that leaks heat, and the thermostat's job is to replace what leaks. From cold, the 2,500W element runs flat out for about 12 minutes to bring the cavity up to temperature. After that it is switched on only about 60% of the time. Multiply nameplate watts by hours and you will overstate the bill by roughly half.
Worked example (2,500W oven, on for one hour, $0.16/kWh): 2.5 kW × 12/60 h = 0.5 kWh of preheat, plus 2.5 kW × 48/60 h × 0.6 = 1.2 kWh of baking = 1.70 kWh × $0.16 = $0.27 an hour. The oven's average draw across that hour is 1,700W, not 2,500W.
Cost per cook by time and electricity rate
Columns are how long the oven is switched on, preheat included. Rows are common US electricity rates. All figures are for a 2,500W oven from a cold start.
| Rate ($/kWh) | 15 min | 30 min | 45 minTypical | 60 min | 90 min | 120 min |
|---|---|---|---|---|---|---|
| $0.10 | $0.06 | $0.10 | $0.13 | $0.17 | $0.25 | $0.32 |
| $0.13 | $0.07 | $0.12 | $0.17 | $0.22 | $0.32 | $0.42 |
| $0.16 (US avg) | $0.09 | $0.15 | $0.21 | $0.27 | $0.39 | $0.51 |
| $0.22 | $0.13 | $0.21 | $0.29 | $0.37 | $0.54 | $0.70 |
| $0.33 | $0.19 | $0.31 | $0.44 | $0.56 | $0.81 | $1.06 |
| Energy used | 0.57 kWh | 0.95 kWh | 1.33 kWh | 1.70 kWh | 2.45 kWh | 3.20 kWh |
| Average draw | 2,300W | 1,900W | 1,767W | 1,700W | 1,633W | 1,600W |
Notice the average draw falling as the cook gets longer. The preheat is a fixed cost; spreading it across more minutes is the whole reason a slow roast is cheaper per hour than a quick bake. Find your own rate on the rates by state page.
Why our appliance page quotes a bigger number
The electric oven appliance page does the standard watts-times-hours sum: 2.5 kW for an hour a day, every day, is $146 a year. It is the right calculation for a constant load, and an oven is not one. Apply the duty cycle to that same hour a day and you get $99. Cook the 4 nights a week that most households actually do, for 45 minutes rather than sixty, and you land on the $44 on this page. Neither number is wrong; they answer different questions.
Yearly cost by oven wattage and how often you cook
Every cell is a 45-minute cook at $0.16/kWh, priced for a year. Wattage matters here in a way it does not for a kettle: a kettle heats a fixed mass of water and a bigger element just gets there sooner, but a bigger oven is a bigger box losing more heat, so it genuinely burns more.
| Oven | 1× a week | 3× a week | 4× a weekTypical | 7× a week | kWh per cook |
|---|---|---|---|---|---|
| 2,000WSingle wall oven, smaller cavity | $9 | $26 | $35 | $62 | 1.06 |
| 2,500WThe typical 240V freestanding oven | $11 | $33 | $44 | $77 | 1.33 |
| 3,000WBig cavity or two of them | $13 | $40 | $53 | $93 | 1.59 |
| 4,000WCommercial-style, heaviest element | $18 | $53 | $71 | $123 | 2.12 |
Even the worst cell on this table — a 4,000W pro range fired up every day of the year — comes to $123 a year. An oven has an enormous nameplate and almost no hours. That combination is the opposite of a refrigerator, which sips power but never stops, and it is why the oven is almost never the appliance behind a surprising bill. See which appliances actually cost the most.
How much does a self-cleaning cycle cost?
About $0.96 a cycle. A pyrolytic self-clean drives the cavity to roughly 880°F — far above any baking temperature — and holds it there for two to four hours, burning the residue to ash. Holding a temperature that far above the kitchen means the element runs a much harder duty cycle than a bake does, around 80%.
| Cycle length | Energy | Cost per cycle | Twice a year | Equivalent cooks |
|---|---|---|---|---|
| 2 hours | 4.0 kWh | $0.64 | $1.28 | 3.0 |
| 3 hoursThe usual default | 6.0 kWh | $0.96 | $1.92 | 4.5 |
| 4 hours | 8.0 kWh | $1.28 | $2.56 | 6.0 |
A 2,500W oven at 80% duty. “Equivalent cooks” compares each cycle against one 45-minute dinner. Steam-clean cycles, which run at a low temperature for 20-30 minutes, use a small fraction of this.
The electricity is not the reason to think twice
Run self-clean twice a year and it adds about $1.92 to your annual bill — a rounding error against the $44the oven costs to cook with. The costs worth weighing are the other ones: the cycle bakes the door lock, the thermal fuse and the control board at a temperature nothing else in the oven's life reaches, and those are the parts that fail afterwards.
Never run it during a heatwave
Almost all of those 6 kWh end up as heat in your kitchen, over a few hours, in a house you are probably air conditioning. Your AC then pays to remove it — at its own efficiency, so a fraction of a kWh of cooling per kWh of heat. Run the cycle in the shoulder seasons and the same heat is doing useful work. More of this thinking in our summer energy wasters guide.
Gas vs. electric oven cost
Gas is normally the cheaper fuel to bake with, and the margin is smaller than the argument it generates. A 18,000 BTU/hr bake burner running the same preheat-then-cycle pattern burns 0.18 therms an hour of burner time. At $1.50/therm that is $0.14 for the 45-minute cook that costs an electric oven $0.21.
| Gas price | Gas, per cook | Gas, per year (4×/wk) | Gas saves you | Break-even rate |
|---|---|---|---|---|
| $1.00/therm | $0.10 | $20 | $24 | $0.072 |
| $1.50/thermA mid-range US price | $0.14 | $30 | $14 | $0.108 |
| $2.00/therm | $0.19 | $40 | $4 | $0.144 |
| $2.50/therm | $0.24 | $50 | -$6electric wins | $0.180 |
| 2,500W electric ovenAt $0.16/kWh | $0.21 | $44 | The gas price makes no difference | |
“Break-even rate” is the electricity price at which the electric oven costs exactly what the gas one does: pay less than that per kWh and electric is the cheaper oven. The US average is $0.16, which is above the break-even on every row but the last — cheap gas beats average electricity, and it takes $2.50/therm gas before that flips. The comparison also gives gas the benefit of the doubt by assuming its burner cycles as little as an electric element does; in reality a gas oven vents its combustion gases, and the heat in them, out of the cavity, so it has to run more. Gas prices vary far more by region and season than the $1.50/therm used here; enter yours in the calculator.
A $14-a-year gap does not justify a conversion
That is the honest headline. Running a gas line to a kitchen that does not have one, or a 240V circuit to one that does not, costs hundreds of dollars and will not pay itself back inside a decade on baking alone. Cook on the fuel your kitchen already has. If you are choosing between the two in a house that offers both, choose on how they cook — gas gives you a live flame on the hob and a moister oven; electric gives you steadier bake temperatures — not on this table.
What the fuel comparison leaves out
Two things, both pointing the same way. A gas oven vents combustion products into the room, which is a ventilation question rather than a cost one. And most gas utilities bill a fixed monthly service charge on top of the per-therm rate — if the oven were the only gas appliance in the house, that standing charge alone would erase the $14 several times over.
How to cut what your oven costs to run
Every one of these works on the same two terms in the formula: the fixed preheat, and the hours the element spends replacing heat that escaped.
Cook more than one thing at a time
The 12-minute preheat costs $0.08 whether the oven holds one tray or three. Filling it splits that fixed cost across every dish, which is the one situation where a full-size oven beats a countertop one outright.
Use a small appliance for small food
Heating a whole cavity to bake two potatoes is most of what an oven wastes. An air fryer or a toaster oven heats a fraction of the volume in a fraction of the time.
Skip the preheat when it is not needed
Cakes and breads need a hot cavity from the first minute. Casseroles, roasts and anything cooking for over an hour do not — put them in cold and start the clock early. That is 38% of a 45-minute cook's energy doing useful work instead of waiting.
Keep the door shut
Opening the door drops the cavity around 25°F, and the element has to put every one of those degrees back at full power. Use the window and the light. The oven does not know you are curious; it just runs longer.
Turn it off early
A hot cavity holds its heat for a good ten minutes. On a long bake, killing the element for the last few minutes finishes the dish on stored heat and takes those minutes straight off the duty-cycle term.
Use convection if you have it
A fan moves hot air onto the food instead of waiting for it to drift there, so the same dish finishes sooner and often at a lower setting. Shorter cook, fewer element hours. More ideas in our energy savings guide.
Related Guides
Electric Oven Cost Calculator
Quick watts-and-hours estimate on the main tool
Cost to Run a Toaster Oven
The same dish, in a cavity a tenth of the size
Cost to Run an Air Fryer
Half the watts, a three-minute preheat
Compare Appliances
Put the oven against anything else in the house
Most Efficient Appliances
Which appliances really drive your bill
Electricity Rates by State
Find your state's average rate
Frequently Asked Questions
How much does it cost to run an oven for 1 hour?
About $0.27 an hour for a standard 2,500W electric oven at the 2024 US average rate of $0.16/kWh. That is 1.70 kWh, not the 2.5 kWh a watts-times-hours sum would give you, because the element only runs flat out for the 12-minute preheat. Once the cavity is hot the thermostat cycles the element on and off — it is energised roughly 60% of the time, so the oven's average draw over the hour is about 1,700W.
How much electricity does an electric oven use per month?
Less than most people expect. Cooking for 45 minutes, 4 times a week, a 2,500W oven uses about 23 kWh a month — roughly $3.67 at $0.16/kWh, or $44 a year. An oven has a huge nameplate wattage and a very small number of hours, which is the opposite of a refrigerator, and it is why the oven is rarely the appliance driving a high power bill.
Does the self-cleaning cycle use a lot of electricity?
A single 3-hour self-clean cycle uses roughly 6 kWh, or about $0.96 at the US average rate. That is real — it is about 4.5 normal cooks' worth of energy in one afternoon, because the cavity is driven to around 880F and held there. But run twice a year it adds about $1.92 to your annual bill. The cycle is worth thinking about for the heat it dumps into your kitchen in August, not for what it costs.
Is a gas oven cheaper to run than an electric oven?
Usually yes, and usually by less than people assume. At $1.50/therm an 18,000 BTU/hr gas bake burner costs about $0.14 for the same 45-minute cook that costs an electric oven $0.21. Over a year of 4 cooks a week that is $30 against $44 — a difference of about $14. Electricity has to fall below $0.108/kWh before the electric oven wins outright. No amount of that saving repays the cost of running a gas line, so cook on whichever fuel your kitchen already has.
Does preheating waste energy?
It is a real cost but a fixed one. The preheat is the only part of a cook where the element draws its full 2,500W, and it accounts for about 38% of a 45-minute cook's energy — but only 16% of a two-hour one. That is the useful shape of it: the longer the cook, the less the preheat matters, and the more sense it makes to batch several dishes into one heat-up rather than preheating twice.
Is an air fryer cheaper than an oven?
For one or two portions, clearly. A 2,500W oven spends $0.08 of electricity just heating an empty cavity before the food goes in. An air fryer or toaster oven has a fraction of the volume to heat, reaches temperature in two or three minutes, and draws about half the watts. The full-size oven only wins when you are filling it — several trays at once amortise one preheat across every dish on them.