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Free Cooking Energy Cost Calculator

Air Fryer vs Oven โ€ข Instant Pot vs Slow Cooker โ€ข 2026 Electricity Rates

This cooking energy cost calculator lets you compare the real electricity cost of an air fryer vs oven, Instant Pot, microwave, and slow cooker side by side. See exactly how much electricity your oven uses per hour, discover the cheapest way to cook every recipe, and project your annual energy savings using current 2026 US utility rates.

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Contender A (Old School)

Minutes

Contender B (Challenger)

๐Ÿš€
Minutes

๐Ÿ’ก Pressure cookers are usually 30โ€“50 % faster.

Adjust Electricity Rate ($/kWh)
$ / kWh

Appliance Wattage & Cost-Per-Hour Chart

How much does every kitchen appliance cost to run? Calculated at the 2026 US average rate of $0.17 / kWh.

ApplianceWattageCost / HourBest For
๐Ÿฆ– Electric Oven2,000โ€“5,000 W$0.34โ€“$0.85Large batches, baking, roasting whole birds
๐Ÿ”ฅ Stovetop Burner1,200โ€“2,400 W$0.20โ€“$0.41Soups, sauces, boiling pasta
๐Ÿš€ Air Fryer1,200โ€“1,800 W$0.20โ€“$0.31Crispy foods, chicken, fries, reheat โ€” no pre-heat needed
โšก Instant Pot900โ€“1,200 W$0.15โ€“$0.20Roasts, beans, soups โ€” cooks 50โ€“70 % faster
๐Ÿ“บ Toaster Oven1,000โ€“1,500 W$0.17โ€“$0.26Small bakes, toast, reheating leftovers
๐Ÿ“ก Microwave700โ€“1,200 W$0.12โ€“$0.20Potatoes, rice, steamed veggies, defrost
๐Ÿข Slow Cooker150โ€“300 W$0.03โ€“$0.05Stews, pulled pork, chili โ€” runs all day cheaply

๐Ÿ’ก DIY Formula:

Cost = (Watts รท 1,000) ร— Hours ร— $/kWh
Example: 3,000 W oven ร— 1 hour ร— $0.17 = $0.51

Cheapest Way to Cook Popular Recipes

Winner by total electricity cost per serving at $0.17 / kWh. Use the calculator above to verify with your own rate.

๐Ÿฅ” Baked Potato Winner: Microwave
๐Ÿ“ก Microwave (8 min) $0.02
๐Ÿš€ Air Fryer (35 min) $0.15
๐Ÿฆ– Oven (60 min) $0.51
๐Ÿ— Chicken Breast Winner: Instant Pot
โšก Instant Pot (15 min) $0.04
๐Ÿš€ Air Fryer (22 min) $0.09
๐Ÿฆ– Oven (30 min) $0.26
๐Ÿ– Pot Roast Winner: Instant Pot
โšก Instant Pot (60 min) $0.17
๐Ÿข Slow Cooker (480 min) $0.16
๐Ÿฆ– Oven (180 min) $1.53
๐Ÿš Rice (6 cups) Winner: Microwave
๐Ÿ“ก Microwave (20 min) $0.06
๐Ÿ”ฅ Stovetop (20 min) $0.17
๐Ÿข Slow Cooker (240 min) $0.14

๐Ÿ“Œ Bottom Line:

For daily cooking a microwave + air fryer combo is the cheapest. Reserve the big oven for Thanksgiving and batch-baking days.

๐Ÿ”ฅ Why Your Oven is a "Money Pit"

Diagram illustrating thermal inefficiency. The left shows an oven wasting energy by heating empty air and metal racks. The right shows a small appliance focusing heat directly on the food.
Visual Guide: Why size matters โ€” ovens waste energy heating empty air and metal, while small appliances focus heat directly on the food.

It comes down to simple physics: Heating air is inefficient.

A standard electric oven is a 3,000-watt metal box. When you turn it on you aren't just cooking your chicken โ€” you are paying to heat:

  • 30+ pounds of metal racks and walls
  • 4+ cubic feet of empty air
  • Your entire kitchen (forcing your AC to work harder in summer)

Small appliances win because they focus energy directly on the food. An Air Fryer heats instantly. A Pressure Cooker traps steam to force heat transfer. You pay for cooking, not heating the house.

Air fryers are one of the biggest energy savers โ€” but materials matter at high heat. See our research on non-toxic ceramic air fryers and electricity usage .

What This Calculator Compares

This tool calculates the electricity cost per meal based on wattage and time. It uses the 2026 US average electricity rate ($0.17 / kWh) by default, but you can adjust it if you live in a high-cost area like California or Hawaii.

Note: We assume appliances run at their rated wattage. In reality ovens cycle on and off, so actual usage may be slightly lower โ€” but the efficiency gap remains massive.

When to Use This Tool

The savings are most dramatic for:

  • Frequent Small Meals: Cooking for 1โ€“4 people. Heating a huge oven for two chicken breasts is wasteful.
  • Long Cook Times: Roasts, stews, or baked potatoes. An Instant Pot can cut a 3-hour roast down to 45 minutes.
  • Summer Cooking: When using the oven fights against your air conditioning, effectively doubling your cost.

The Microwave Secret: Speed Equals Savings

For single portions and simple foods like baked potatoes, rice, or steamed vegetables the microwave is unbeatable. It cooks a potato in 8 minutes for about $0.02, while an oven takes 60 minutes and costs $0.51.

Want to see the exact numbers? We ran a real-world test comparing a single baked potato in the microwave versus a full-size oven: Microwave vs Oven Energy Cost Breakdown

Pro tip: Use the microwave for heating and simple cooking, then finish with a quick broil or air fryer crisp if you need texture.

Gas Stoves: The Electricity Confusion

If you selected "Gas Stove" in the calculator you may be wondering why the electricity cost is so low. That's because gas stoves primarily use natural gas for heat โ€” electricity is only needed for the ignition spark and (in newer models) the safety controls.

โš ๏ธ Power Outage Safety: During a blackout you can manually light gas burners with a match, but the oven won't work without electricity. Never leave a gas flame unattended, and ensure proper ventilation to prevent carbon monoxide buildup.

Learn more: Emergency Cooking During Power Outages

What If the Oven Still Wins?

Sometimes, the oven is the right tool. If you are baking 4 trays of cookies or a 20 lb turkey, you would need to run an Air Fryer in 6 batches.

The Verdict: Use small appliances for daily meals. Save the big oven for Thanksgiving and batch baking.

๐Ÿ’ฐ 2026 Energy-Efficient Home Improvement Credits

You might qualify for up to $2,000 in tax credits when upgrading to an induction cooktop or ENERGY STAR certified appliances. The IRS extended these credits through 2032 as part of the Inflation Reduction Act.

Eligible upgrades include induction stoves, heat pump water heaters, and whole-home energy audits. Combined with your electricity savings, these credits can pay back your investment in just 2โ€“3 years.

Learn How to Claim Your Credits โ†’

Cooking Energy & Appliance FAQs

Is an air fryer cheaper to run than an oven? โ–ผ

Yes. Air fryers use about half the wattage (1,500 W vs 3,000 W) and cook 20โ€“30 % faster thanks to their compact size and convection fan. For most meals an air fryer costs 50โ€“70 % less to run than a full-size oven.

How much electricity does an oven use per hour? โ–ผ

A standard electric oven draws 2,000โ€“5,000 watts. At the 2026 US average of $0.17 / kWh that translates to $0.34 to $0.85 per hour. A typical 3,000 W oven at 350 ยฐF costs about $0.51 per hour.

What is the cheapest way to cook a baked potato? โ–ผ

The microwave โ€” about 8 minutes and $0.02. An oven takes 60 minutes and costs $0.51, more than 25ร— the microwave cost for the exact same result. Hit the Baked Potato preset above to see the full breakdown.

Does an Instant Pot save money on electricity? โ–ผ

Absolutely. Pressure cookers use around 1,000 W and cook 50โ€“70 % faster by trapping steam and raising the internal boiling point. A pot roast that takes 3 hours in the oven finishes in about 60 minutes โ€” saving over $1.00 per cook.

Does a slow cooker use a lot of electricity? โ–ผ

No โ€” slow cookers draw only 150โ€“300 W, less than most light bulbs. Even running for 8 hours the total cost is about $0.14โ€“$0.20, making them one of the cheapest appliances to operate.

Does a gas stove work without electricity? โ–ผ

The burners can be manually lit with a match during a power outage, but the oven requires electricity for ignition and safety controls. Never leave a gas flame unattended, and ensure proper ventilation.

How much does it cost to run an air fryer per hour? โ–ผ

A typical 1,500 W air fryer costs about $0.26 per hour at $0.17 / kWh. Most air fryer recipes finish in 15โ€“25 minutes, so the real per-meal cost is usually $0.04โ€“$0.11.

Is it cheaper to use an oven or a stovetop? โ–ผ

Per hour, the stovetop is cheaper (1,500 W vs 3,000 W). But for long simmers โ€” soups, stews, beans โ€” a slow cooker at 200 W beats both by a wide margin.

Does pre-heating an oven waste electricity? โ–ผ

Yes โ€” pre-heating a 3,000 W oven for 15โ€“20 minutes uses about $0.13โ€“$0.17 before a single piece of food goes in. Air fryers and microwaves need no pre-heating, which is another reason they're cheaper for quick meals.

What appliance should I buy to save the most on energy? โ–ผ

For the biggest single upgrade: an air fryer. It replaces roughly 80 % of oven use at a fraction of the cost. For batch cooking: an Instant Pot cuts roast times by 60โ€“70 %. Both together cover nearly every recipe and can save $100โ€“$200 / year.

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