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For toast, reheating, and small portions, a toaster oven is often the more convenient choice; a conventional oven is better suited to large dishes, tall foods, and multiple trays. A toaster oven may also use less energy for a small cooking job, but there is no universal savings percentage: the fair comparison is how much energy each appliance uses to cook the same food to the same result.
What separates a toaster oven from a conventional oven?
Both appliances cook inside an enclosed chamber using heating elements or, in a conventional oven, potentially a gas flame. Depending on the model, either may support baking, roasting, broiling, or convection cooking. The practical difference is chiefly cavity size and layout: a countertop toaster oven is compact, while a full-size oven has more room and rack positions.
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In RTINGS’ tested group, full-size ovens could accommodate multiple full-size pans. Countertop models ranged from a one-slice mini oven to one that fit two 9-by-13-inch pans. Those are examples from that test group, not specifications for every model.
There is also a regulatory distinction in the United States. The Department of Energy defines a conventional oven for its appliance standards as a household appliance with one or more compartments using a gas flame or electric resistance. Its definition excludes portable or countertop electric-resistance ovens designed for approximately 120 volts. In everyday conversation, however, people may call a countertop baking appliance a small oven.
#1 Best Overall
- 5-IN–1 MULTIFUNCTIONAL COOKING- Enjoy versatile cooking with Air Fry, Bake, Broil, Toast, and Keep Warm settings. Perfect for preparing a wide variety of meals from crispy fries to perfectly baked pizzas and golden toast.
- HEALTHY AIR FRYING TECHNOLOGY – Cook crispy, delicious meals with little to no oil using advanced air frying technology. Enjoy healthier alternatives to your favorite fried foods without compromising taste or texture.
- EVENTOAST TECHNOLOGY FOR PERFECT TOAST – Achieve evenly toasted bread, bagels, and more with BLACK+DECKER’s EvenToast technology, ensuring consistent results every time with no hot spots.
- COMPACT YET SPACIOUS INTERIOR – Fits up to a 9-inch pizza or 4 slices of bread, making it ideal for quick family meals, snacks, or small batch cooking while saving valuable counter space.
- USER-FRIENDLY CONTROLS & 7 ACCESSORIES – 30-minute timer with removable crumb/drip tray, bake pan, air fry mesh tray, and wire rack for easy cleanup. Use drip tray when cooking and keep food clear of heating element. See User Manual for proper use.
Which appliance suits the food you are cooking?
| Cooking need | Usually the more practical fit | Why |
|---|---|---|
| Toast, a pizza slice, reheating, or a small side dish | Toaster oven | The smaller chamber is convenient for small batches and avoids heating a large cavity for a modest portion. |
| A tall casserole or large roast | Conventional oven | Greater usable height and capacity make it easier to fit larger dishes. |
| Several trays or a large meal | Conventional oven | More rack positions and interior room support larger batches. |
| A few servings when countertop space is available | Toaster oven | It can handle everyday small-batch cooking without using the full-size cavity. |
If you adapt a recipe for a toaster oven, check that the dish fits with clearance and verify doneness rather than assuming the same rack placement or cooking time. A smaller cavity can put food closer to heating elements, increasing the chance of browning or burning before the inside is cooked. Temperature stability, rack position, and usable height matter particularly for baking.
Does a toaster oven use less energy?
Often, it can use less energy for a small task, partly because it has less space to heat and may preheat faster. But appliance wattage alone does not answer the question: energy use depends on power over time. Compare watt-hours for the same food and target result when reliable measurements are available.
Rank #2
- ACCOMMODATES 9-INCH PIZZA OR 4 SLICES OF BREAD – Designed to maximize utility within a compact footprint, the curved interior fits a 9-inch pizza or 4 slices of bread. Place items evenly for best results when toasting, baking, or reheating.
- FOUR VERSATILE COOKING FUNCTIONS – Select from baking, broiling, toasting, or keeping food warm. Natural convection airflow circulates heat throughout the oven—preheat for 10 minutes to ensure consistent cooking and crisp results.
- PRECISION 30-MINUTE TIMER WITH STAY-ON OPTION – The 30-minute timer includes clearly marked toast settings and a stay-on function. Oven will not operate unless timer is set or stay-on is selected, ensuring controlled and safe operation.
- CONVENIENT REMOVABLE CRUMB TRAY – The slide-out crumb tray allows for quick, hygienic cleanup. To prevent spills and overheating, keep food and bakeware at least 1½ inches from the top heating elements and fully contained within the tray.
- COMPACT AND CONTEMPORARY DESIGN – Measuring 14.5" x 10.8" x 8.8", this sleek stainless steel toaster oven complements any kitchen. Outer surfaces become hot during use—always use oven mitts and allow space for proper ventilation.
RTINGS’ comparison, updated February 24, 2025, measured selected appliances and recipes. Its baking-cycle measurements illustrate why the result must stay attached to the tested model and task:
| Tested appliance or group | Measured energy | What the figure describes |
|---|---|---|
| Frigidaire Gallery GCRE306CBF full-size oven | 600 Wh | RTINGS’ tested baking cycle |
| Black+Decker Natural Convection 4-Slice TO1756SB | 127 Wh | RTINGS’ tested baking cycle; 21.2% of the full-size oven’s measured energy in that test |
| Tested toaster ovens, average | 183 Wh | RTINGS’ baking-cycle average; 30.5% of the full-size oven’s measured energy |
Preheating also favored the tested toaster ovens: to reach 350°F, the full-size oven used 420 Wh, while tested toaster ovens averaged 60 Wh. Average preheat time was 12 minutes for full-size ovens and 3 minutes 48 seconds for toaster ovens; a large countertop combi oven was an exception at 9 minutes 27 seconds.
Rank #3
- COMPACT & SPACE SAVING: Versatile compact design fits nicely in small spaces when counter space is limited.
- ADJUSTABLE TIMER: The 15 min timer is perfect for toasting and warming up food for a quick and easy snack or breakfast.
- ADJUSTABLE TEMPERATURE CONTROLS: Adjust your oven controls between 200F-450F degrees for toasting, warming or baking.
- 650 WATTS OF POWER: Built-in temperature thermostat maintains even cooking heat to keep food warm, bake or toast.
- ACCESSORIES INCLUDED - Includes a non-stick back pan and wire rack that easily slides in and out of the rack position to suit a variety of foods.
Results changed with the task. In RTINGS’ air-frying tests, the Frigidaire used 960 Wh, the toaster-oven average was 420 Wh, and basket-style air fryers averaged 245 Wh. For equivalent toast batches, the tested full-size oven used about twice the energy of the toaster oven; RTINGS also reports that a slot toaster averaged 76 Wh for four slices.
These are measurements for RTINGS’ selected appliances and test methods, not predictions for every home or recipe. RTINGS says its tested toaster ovens used 30–80% less energy across the tasks it analyzed; that range applies to its tests, not to all toaster ovens, ovens, or cooking situations. ENERGY STAR’s toaster-oven scoping report summarizes an industry-representative estimate that toaster ovens use about one-third to one-half less energy than a conventional electric oven for small meals. That is an industry estimate cited in a scoping report, not a universal government test result. North Dakota State University Extension likewise recommends considering small appliances such as toaster ovens for small meals as a potential energy-saving measure, without giving a quantified head-to-head result.
Rank #4
- 5-IN-1 COOKING VERSATILITY – Air fry, Bake, broil, toast, air fry, and keep warm with one powerful appliance. Perfect for preparing everything from crispy snacks to hearty meals.
- AIR FRY TERCHNOLOGY FOR HEALTHIER MEALS – Enjoy the crunch and flavor of fried food with up to 75% less fat. Uses hot air circulation to deliver crispy results without excess oil.
- LARGE CAPACITY FITS 12" PIZZA – Generously sized interior fits six slices of toast or a 12-inch pizza—great for family dinners, appetizers, or meal prepping.
- EVENTOAST TECHNOLOGY FOR CONSISTENT RESULTS – Specially designed interior ensures even heat distribution for perfectly toasted bread, bagels, and more.
- USER-FRIENDLY WITH 60-MINUTE TIMER – Simple control knobs let you customize temperature and time. Includes stay-on function, removable crumb tray, air fry basket, bake pan, and wire rack for easy use and cleanup.
When can the energy advantage shrink?
A toaster oven is not automatically the efficient option for every job. A larger portion may not fit, and cooking several rounds instead of one batch can change the comparison. If both appliances are already hot, the preheating difference may matter less. These are practical factors to consider; the cited measurements do not quantify every such scenario.
- Match the portion: compare appliances for the amount of food you actually need to cook.
- Include the whole job: consider preheating and total cooking time, particularly for short cycles.
- Check fit and results: account for dish height, rack position, heat distribution, and the required doneness.
- Consider the space: a countertop unit needs a suitable location and clearance; a built-in or range oven occupies a larger permanent footprint.
What U.S. energy standards do—and do not—tell you
The Department of Energy says manufacturers have been required to comply with U.S. energy conservation standards for residential conventional cooking products since 1990. In 2024, DOE finalized new standards for residential ranges and stand-alone cooktops and ovens, with compliance required for newly manufactured models beginning January 31, 2028. DOE projected approximately $1.6 billion in consumer utility-bill savings over 30 years from those standards. That projection concerns the standards as a whole; it is not an estimate of savings from an individual toaster oven. Qualifying countertop ovens are excluded under the regulatory definition.
Best Value
- 4-in-1 VERSATILITY FOR EVERYDAY COOKING – Toast, bake, broil, and keep food warm with one compact countertop appliance. Perfect for quick meals, snacks, and small-batch cooking without heating up your full-size oven.
- EVENTOAST TECHNOLOGY FOR CONSISTENT RESULTS – Specially designed interior ensures even heat distribution and better toasting performance—ideal for up to 4 slices of bread or a 9” pizza.
- 30-MINUTE TIMER WITH STAY-ON FUNCTION – Built-in precision timer with stay-on setting allows for longer baking tasks. Ready indicator light and audible signal make meal prep simple and hassle-free.
- SPACE-SAVING, SLEEK STAINLESS STEEL DESIGN – Modern stainless steel finish complements any kitchen decor while saving counter space. Durable build and clear glass door let you monitor food easily.
- EASY CLEANUP WITH REMOVABLE CRUMB TRAY – Includes a slide-out crumb tray, bake pan, and broil rack for mess-free use and quick cleaning after every meal.
How to choose between them
Choose according to the foods and portions you most often prepare. A toaster oven makes sense for small batches if its capacity, height, and temperature control suit your cooking. A full-size oven is the more useful tool when you routinely need room for large dishes or multiple trays. For energy, favor task-matched watt-hour measurements over appliance wattage or a broad savings claim.
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