Air Fryer vs Convection Oven: Which Actually Saves You Money?

Think your air fryer is cheaper to run than a convection oven? Our lab tests measured actual energy consumption over a month of typical use, and the results turned conventional wisdom on its head. While air fryers are marketed as energy-efficient, the total cost of ownership, including purchase price, lifespan, and energy bills, tells a different story.

Why This Matters

With electricity rates rising across the country, every watt counts. The average US household spends about $1,400 annually on energy, and kitchen appliances account for a significant portion. Many consumers choose air fryers believing they save money on energy bills, but few compare the long-term financial impact. At Review Atlas, we decided to settle the debate once and for all.

The Solution: Total Cost of Ownership Analysis

We purchased five popular air fryers and five convection ovens, ranging from budget to premium. Our testing methodology standardized cooking tasks: frozen french fries, chicken wings, and roasted vegetables. We measured energy consumption using a Kill A Watt meter and calculated costs based on the national average electricity rate of $0.14/kWh. We also factored in average purchase price, expected lifespan (based on manufacturer ratings and user reviews), and maintenance costs.

Our Test Models

• Air Fryers: Cosori Pro II Air Fryer ($99.99), Ninja Air Fryer Max XL ($129.99), Philips Premium Airfryer XXL ($199.99), Instant Vortex Plus ($89.99), Chefman TurboFry ($69.99)
• Convection Ovens: Breville Smart Oven Air Fryer Pro ($399.99), Cuisinart TOB-260 ($229.99), Oster Digital Convection Oven ($149.99), Hamilton Beach Countertop Oven ($89.99), Black+Decker Convection Oven ($79.99)

Note: Prices are accurate as of writing. For the latest deals on Breville, see our Best Time to Buy Breville Smart Oven Air Fryer Pro (2025 Guide).

Step-by-Step Comparison

1. Upfront Costs

Air fryers generally cost less upfront. Our budget Chefman TurboFry at $69.99 undercuts even the cheapest convection oven at $79.99. However, premium air fryers like the Philips XXL ($199.99) approach the price of mid-range convection ovens. The Breville Smart Oven Air Fryer Pro at $399.99 is an outlier, but it offers both functions and a larger capacity.

Winner: Air Fryers – but only if you stick to budget models.

2. Energy Consumption per Cook

We measured energy used for a standard 20-minute cook cycle (frozen fries, 1 lb). The average air fryer consumed 0.12 kWh per cycle, while the average convection oven used 0.18 kWh – a 33% difference. However, convection ovens can often cook twice as much food in one go. When we normalized energy per pound of food, the gap narrowed to 15%.

Winner: Air Fryers – but the advantage shrinks with larger batches.

3. Monthly Energy Cost

Assuming 20 cook cycles per month, air fryers cost about $0.34/month in electricity, while convection ovens cost $0.50/month. That’s a savings of $1.92 per year. Not a game-changer.

4. Lifespan and Maintenance

Air fryers have a shorter lifespan – typically 3–5 years – due to heating elements that degrade faster and non-stick coatings that peel. Convection ovens last 5–10 years with minor repairs (like replacing a heating element). Over 10 years, you might buy two air fryers versus one convection oven. That doubles the upfront cost for air fryer users.

Winner: Convection Ovens – longer lifespan offsets energy savings.

5. Total Cost of Ownership Over 5 Years

We calculated TCO: purchase price + energy cost + maintenance (e.g., replacement parts). For budget models:

• Chefman TurboFry (air fryer): $69.99 + $1.90 energy + $0 = $71.89
• Hamilton Beach Oven (convection): $89.99 + $3.00 energy + $0 = $92.99

The air fryer saves $21 over 5 years. But for premium models:

• Philips XXL: $199.99 + $1.90 = $201.89
• Breville Smart Oven: $399.99 + $3.00 = $402.99

Here, the air fryer saves $201. However, the Breville is also a convection oven, so it’s a hybrid. If you need both functions, it may be cheaper than buying separate appliances.

Winner: Air Fryers – but only for budget models; hybrid convection ovens offer better value for heavy users.

Pro Tips

• For Singles or Couples: A dedicated air fryer like the Cosori Pro II is cost-effective for small batches.
• For Families: A convection oven with air fryer function – like the Cuisinart TOB-260 – handles larger loads and lasts longer.
• Maximize Energy Savings: Batch cook to fill the oven, reducing cycles. Use the air fryer mode only for crispy results.
• Check Your Electricity Rate: If you pay over $0.20/kWh, energy efficiency matters more. Our calculator shows air fryers save $3/year at high rates.

Bottom Line

After crunching the numbers, the answer isn’t black and white. If you’re on a tight budget and cook mostly for one or two people, a $70 air fryer will save you money overall. But if you have a family or want a long-term investment, a convection oven with air fryer capability is the smarter choice. The Breville Smart Oven Air Fryer Pro is expensive but versatile; for a budget-friendly alternative, consider the Oster Digital Convection Oven.

Ultimately, the best value comes from matching the appliance to your cooking habits. Air fryers win on energy efficiency per cycle, but convection ovens win on durability and capacity. At Review Atlas, we recommend thinking beyond the purchase price – include energy bills and lifespan in your decision. For most households, a convection oven with an air fryer setting strikes the perfect balance of cost and performance.

Frequently Asked Questions

What is the total cost of ownership of an air fryer vs convection oven?

Total cost of ownership includes purchase price, energy costs, and maintenance over the appliance's lifespan. For budget models, air fryers cost about $72 over 5 years vs $93 for a convection oven, saving $21. But premium air fryers like the Philips XXL cost $202 vs $403 for a Breville hybrid, saving $201. However, convection ovens last longer, reducing replacement costs.

How much electricity does an air fryer use compared to a convection oven?

On average, an air fryer consumes 0.12 kWh per 20-minute cook cycle, while a convection oven uses 0.18 kWh—a 33% difference. However, when normalized per pound of food, the gap narrows to 15% because convection ovens can cook larger batches. Monthly cost difference is only about $0.16, saving just $1.92 per year.

Why do air fryers have a shorter lifespan than convection ovens?

Air fryers typically last 3–5 years due to heating elements that degrade faster and non-stick coatings that peel over time. Convection ovens, built with more robust components, last 5–10 years and allow minor repairs like heating element replacement. Over a decade, you may need to buy two air fryers versus one convection oven, doubling upfront costs.

When is it better to buy an air fryer instead of a convection oven?

Buy an air fryer if you are a single or couple cooking small batches, as budget models like the Cosori Pro II cost under $100 and save energy. Choose a convection oven for families needing larger capacity and longer lifespan. For heavy users, a hybrid convection oven with air fryer function offers the best value by combining both capabilities in one durable appliance.