How Much Does It Cost to Run a Toaster Oven?
About 10 cents a day, or roughly $2.88 a month, for a typical 1,200W toaster oven used around 30 minutes a day. At the 2024 US average rate of $0.16/kWh, that 30-minute cook draws 0.60 kWh (about $0.10) — a fraction of what the full-size oven beside it would use for the same meal.
Want your exact number? Enter your wattage, daily use, and local rate on the toaster oven calculator (pre-loaded at 1,200W), or see where it lands against other kitchen appliances on the efficiency rankings.
The Formula
Daily cost = (watts ÷ 1,000) × hours running × price per kWh
A toaster oven's draw is set by its heating element — usually 1,200 to 1,800 watts. The element cycles on and off to hold temperature, so a 30-minute "cook" doesn't run at full wattage the whole time, but nameplate watts give a safe, slightly conservative estimate.
Worked example (1,200W for 30 minutes at $0.16/kWh): 1.2 kW × 0.5 h = 0.60 kWh × $0.16 = $0.10 per cook — or $2.88/month and $35/year for one cook a day.
Cost by Daily Use (1,200W Toaster Oven)
How long the oven is on is what moves the bill. All rows are a 1,200W model at $0.16/kWh — scale the minutes to match your own habit.
| Daily use | kWh per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| Toast / reheat only — A few minutes a day | 0.20 | $0.03 | $0.96 | $12 |
| Light daily use | 0.40 | $0.06 | $1.92 | $23 |
| One 30-minute cook (typical) | 0.60 | $0.10 | $2.88 | $35 |
| An hour a day — Heavy household | 1.20 | $0.19 | $5.76 | $70 |
An 1,800W model draws more per minute, but it also heats up and cooks faster — so for the same dish the gap is smaller than the raw wattage suggests. Runtime, not the nameplate number, is what you control.
Toaster Oven vs. Full Oven: Which Costs Less?
For a small meal, the toaster oven wins — and it's the preheat that decides it. A full electric oven draws 2,500W and warms a big cavity for 10-15 minutes before you start; a toaster oven preheats in 2-3 minutes and is small enough to run without the big cycling loss. Same dish, both at $0.16/kWh:
| What you're cooking | Toaster oven (1,200W) | Full oven (2,500W) | You save |
|---|---|---|---|
| Toast / reheat (10 min) | 0.26 kWh$0.04 | 0.75 kWh$0.12 | 65% |
| Small bake (25 min) | 0.56 kWh$0.09 | 1.13 kWh$0.18 | 50% |
| Roast / longer bake (60 min) | 1.26 kWh$0.20 | 2.00 kWh$0.32 | 37% |
Estimates assume a 12-minute oven preheat and the element cycling at ~60% once hot. The saving shrinks the longer you cook, and it flips the other way for a big batch: a full oven that fits three trays at once can be cheaper per item than running the toaster oven three times. The rule of thumb: toaster oven for small and quick, full oven for large and long.
Yearly Cost by Rate and Daily Use
Yearly cost of a 1,200W toaster oven across common US electricity rates. Find your state on the rates page to pick the right row.
| Rate ($/kWh) | Toast / reheat0.20 kWh/day | Typical0.60 kWh/day | Heavy1.20 kWh/day |
|---|---|---|---|
| $0.10 | $7 | $22 | $44 |
| $0.13 | $9 | $28 | $57 |
| $0.16 (US avg) | $12 | $35 | $70 |
| $0.22 | $16 | $48 | $96 |
| $0.33 | $24 | $72 | $145 |
Even a daily cook in a high-rate state is a small line item — but the "heavy" column shows how an hour a day adds up over a year.
What Drives the Cost
How long it's on, not the wattage
An 1,800W oven draws more per minute than a 1,200W one, but it heats and cooks faster, so the cost for the same dish is closer than the wattage gap suggests. Runtime and how often you use it are what actually move the bill.
The preheat you skip
Most of a toaster oven's savings over a full oven is the preheat you avoid. Warming a small cavity takes 2-3 minutes instead of 10-15, so for a quick reheat you spend a fraction of the energy before cooking even starts.
Batch size flips the math
For one or two portions the toaster oven is cheaper. Cooking for a crowd, a full oven that fits several trays in one preheat can beat running the toaster oven back to back. Match the appliance to the portion, not the recipe.
Your electricity rate
The same cook costs three times as much in Hawaii (~$0.40/kWh) as in a low-rate state (~$0.11/kWh). It's still cents per meal, but it's the one variable that shifts every appliance on your bill — check your state's average rate before trusting any single number.
How to Lower the Cost
Use it instead of the full oven
For anything that fits, the countertop oven skips the big preheat and cavity — 40-65% less energy than firing up the full-size oven for the same small meal.
Skip the preheat when you can
For reheating and toast you rarely need a full preheat. Put the food in as it warms and shave minutes of element time off every cook.
Choose convection for longer cooks
A convection fan cooks faster at a lower temperature, so the element runs for less time — the savings show up most on 20-plus-minute bakes.
Batch to the full oven
Cooking for several people? One full-oven preheat with three loaded trays beats running the toaster oven three times in a row.
Recommended picks
Countertop Ovens That Skip the Full-Oven Cost
A toaster oven is already cheap to run — the savings come from a short preheat and a small cavity. These picks lean into that, replacing more full-size-oven use with a fraction of the energy.
Compact 4-Slice Toaster Oven
Smallest cavity, shortest preheat
A small 1,200W cavity heats up in a couple of minutes and holds temperature with less energy — the cheapest way to bake, toast, or reheat a single portion.
Convection Toaster Oven
Cook faster, run shorter
A convection fan circulates hot air so food cooks faster at a lower temperature — less time on means less energy per meal than a standard countertop oven.
Air Fryer Toaster Oven Combo
Replace more full-oven use
One countertop unit that toasts, bakes, and air-fries lets you skip the 2,500W full-size oven for most weeknight meals — where the real savings live.
Smart Plug Energy Monitor
Measure the real draw
The heating element cycles on and off, so a toaster oven's real energy use is below its nameplate watts. A plug-in meter shows exactly how many kWh each cook uses.
As an Amazon Associate this site earns from qualifying purchases. Links are sponsored.
Related Guides
Cost to Run an Electric Oven
What the full-size oven costs to run, and how to cut it
Cost to Run an Air Fryer
Per-use cost by wattage, plus oven savings
Cost to Run a Coffee Maker
Daily, monthly, and yearly cost — plus the warming-plate surprise
Cost to Run a Dishwasher
Per-cycle cost by type and rate, plus how to skip heated dry
Most Efficient Appliances
See which appliances cost the most to run
Electricity Rates by State
Find your state's average rate
How to Save on Energy Bills
Practical tips by room with savings
Energy Star Guide
Is upgrading worth the cost?
Frequently Asked Questions
How much electricity does a toaster oven use?
A typical 1,200W toaster oven uses about 0.60 kWh for a 30-minute cook — roughly $0.10 at the 2024 US average rate of $0.16/kWh. Most countertop ovens draw 1,200–1,800 watts, but the heating element cycles on and off to hold temperature, so real use is a little below the nameplate figure. Used once a day, that works out to about $2.88 a month and $35 a year.
Is a toaster oven cheaper to run than a full-size oven?
For small meals, yes — usually 40-65% cheaper for the same dish. A full electric oven draws about 2,500W and needs a 10-15 minute preheat of a large cavity before you even start cooking. A toaster oven's small cavity preheats in 2-3 minutes and holds heat with less energy. The gap is biggest on short cooks like toast or reheating, and it narrows for long roasts. For a large batch spread across several trays, the full oven can actually win per item.
How much does a toaster oven cost per month?
At the US average rate, a 1,200W toaster oven used about 30 minutes a day costs roughly $2.88 a month and $35 a year. Use it only for the occasional slice of toast and it's pennies a month; run it for an hour a day and you're closer to $5.76/month. It's one of the cheaper appliances in the kitchen to run.
Does a higher-wattage toaster oven cost more to run?
A 1,800W model draws more power than a 1,200W one, but it also heats up and cooks faster, so the cost for the same dish is closer than the wattage suggests. What really moves your bill is how long the oven is on and how often you use it — not the nameplate number. A convection model can cut runtime further by cooking faster at a lower temperature.
Is a toaster oven or an air fryer cheaper to run?
They're close — both are small-cavity countertop cookers that beat a full oven for small meals. An air fryer's basket is even smaller and its fan cooks fast, so it often edges out a toaster oven on energy for a single portion. A toaster oven fits more food and does toast and baking a basket can't. For running cost, the deciding factor is portion size and cook time, not which one you pick.
How is the cost calculated?
The formula is simple: (watts ÷ 1,000) × hours running × your price per kWh. For a 1,200W toaster oven that's 1.2 kW × 0.5 h × $0.16 = $0.10 for a 30-minute cook. Multiply by how many times you use it to get the monthly and yearly totals. Enter your own wattage, daily use, and local rate on the calculator to get your exact number.