Air Fryer vs. Convection Oven

Understanding the differences between an air fryer and a convection oven can help you decide which appliance is better suited for your cooking needs. Both use a fan to circulate hot air around the food, but there are key differences in design, functionality, and ideal use cases.

Air Fryer

How It Works

  • An air fryer circulates extremely hot air around the food placed in a basket, cooking it quickly and evenly. The compact space and rapid air circulation mimic the results of deep-frying, creating a crispy exterior with minimal oil.


  • Speed: Generally cooks food faster due to the smaller chamber and more concentrated airflow.
  • Healthier Cooking: Requires significantly less oil than traditional frying methods, making it a healthier choice for achieving crispy textures.
  • Ease of Use: Often comes with preset cooking programs, making it user-friendly for beginners.


  • Capacity: Smaller cooking capacity, making it less ideal for large families or batch cooking.
  • Space: Requires counter space, which might be a consideration in smaller kitchens.

Convection Oven

How It Works

  • A convection oven also uses a fan to circulate hot air around the food, but it typically has a larger cooking area than an air fryer. It can bake, roast, and broil in addition to air frying, although it might not achieve the same level of crispiness as an air fryer for certain foods.


  • Versatility: Can perform a wide range of cooking functions, including baking, roasting, and broiling, making it more versatile.
  • Capacity: Larger capacity is ideal for preparing meals for families or entertaining.
  • Even Cooking: The circulation of hot air leads to more even cooking and browning.


  • Preheat Time: Generally requires a longer preheat time compared to air fryers.
  • Size: Takes up more space, usually installed as part of kitchen cabinetry or as a standalone appliance.

Key Differences

  • Design and Airflow: Air fryers are designed for rapid air circulation in a compact space, making them more efficient at mimicking deep-frying. Convection ovens have a larger cooking area and are better suited for baking and roasting large quantities of food.
  • Functionality: While both can air fry foods, convection ovens offer more versatility with the ability to bake, roast, and broil without needing special accessories.
  • Cooking Capacity: Air fryers are generally better for small to medium-sized portions, while convection ovens can handle larger meals more effectively.


The choice between an air fryer and a convection oven depends on your cooking habits, the amount of space in your kitchen, and your meal-prepping needs. If you frequently cook for a large family or enjoy baking and roasting alongside air frying, a convection oven might be more suitable. However, for those who prioritize quick, crispy results with minimal oil and primarily cook for one to two people, an air fryer could be the ideal choice. In many cases, having both can complement your cooking style, allowing you to choose the right tool for each recipe.

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Bubbly Chef author