DoCompare

Air fryer vs oven: which is cheaper to run?

Updated June 2026 6 min read

Quick verdict

For small, quick meals for one or two people, the air fryer is clearly cheaper. Cooking the same portion often costs around a third of what an electric oven would, because the air fryer heats a small space, skips a long preheat and finishes faster.

Option A

Air fryer

An air fryer is a compact electric cooker that circulates hot air around a small basket or drawer. It heats quickly and is efficient for small portions.

Option B

Electric oven

An electric oven heats a much larger cavity. It is slower and costlier for one small item, but its capacity makes it better for roasts, baking and batch cooking.

Side-by-side comparison

An air fryer usually costs less than an electric oven for small meals, snacks and reheating. An oven can be cheaper per portion when you are batch cooking, baking or cooking a full family meal in one go.

Cost per small meal

Air fryer

Around 5p to 15pBetter

Electric oven

Around 20p to 40p

Energy per use

Air fryer

Roughly 0.2 to 0.5 kWh, little or no preheatBetter

Electric oven

Roughly 0.4 to 1 kWh including preheat

Heat-up and cook time

Air fryer

Preheats in 3 to 5 minutes and cooks fasterBetter

Electric oven

Preheats in 10 to 15 minutes and cooks slower

Capacity

Air fryer

Small, around 3 to 6 litres, best for 1 to 2 portions

Electric oven

Large, around 60 to 70 litres, cooks a whole meal at onceBetter

Best for

Air fryer

Quick meals for one or two, chips, reheating

Electric oven

Roasts, baking and batch cooking for a family

Upfront cost

Air fryer

£50 to £300 to buy

Electric oven

Usually already in your kitchenBetter

Pros and cons

Air fryer pros and cons

Pros

  • ✓Cheaper per meal for small portions, often around a third of an electric oven
  • ✓Little or no preheating, and cooks faster
  • ✓Cheap to buy, from around £50
  • ✓Good crispy results on chips, frozen food and small cuts of meat

Cons

  • -Small capacity, so big meals need several batches that can cost more
  • -Less suited to baking cakes or delicate bakes that need even, gentle heat
  • -An extra appliance taking up worktop space
  • -Not cheaper to run than a gas oven

Electric oven pros and cons

Pros

  • ✓Large capacity cooks a whole meal in one go
  • ✓Better for roasts, baking and batch cooking for a family
  • ✓You almost certainly already own one
  • ✓Even heat distribution for delicate baking

Cons

  • -Longer preheat and cooking time uses more energy for a small meal
  • -More expensive per small portion than an air fryer
  • -Heats a large cavity even when cooking a single item

Cost examples

Small midweek meal

For chips, frozen food, reheating or a small portion of meat, the air fryer usually wins because it heats quickly and uses less electricity.

Air fryer
5p-15p
Oven
20p-40p

Family roast or batch cook

A full oven can cook several trays or portions at once. Running several air fryer batches can remove the saving.

Likely winner
Oven
Key reason
Capacity

Gas oven at home

If your oven runs on gas, the air fryer does not automatically win because gas costs far less per unit than electricity.

Main check
Fuel type
Gas unit cost
Lower

When to choose Air fryer

  • ›You cook small meals for one or two people
  • ›You often reheat food or cook frozen items
  • ›You want shorter preheat and cooking times
  • ›You have an electric oven and want to cut small-meal costs
  • ›You have enough worktop or cupboard space for another appliance

When to choose Electric oven

  • ›You cook family meals or large batches
  • ›You roast, bake or use several trays at once
  • ›You already own an oven and do not want another appliance
  • ›You need even gentle heat for baking
  • ›Your oven runs on gas and is already cheap to use

Calculator

Calculate your own figures

Use the calculator below for a personal estimate, or open the full tool for the complete calculator page.

Inputs

Compare electricity cost using appliance wattage and cooking time.

Open full calculator

FAQs

Is an air fryer cheaper to run than an oven?

For the same small meal, yes. An air fryer typically costs around a third of an electric oven because it heats a small space, needs little preheating and cooks faster. For large or batch meals the oven can work out cheaper per portion.

How much does it cost to run an air fryer per meal?

Around 5p to 15p for a typical small meal at current electricity prices, since most air fryer meals use roughly 0.2 to 0.5 kWh. An electric oven doing the same dish often costs around 20p to 40p.

When is an oven cheaper than an air fryer?

When you are cooking a lot at once. A roast, a full family meal or several portions suit the oven's large capacity, whereas an air fryer would need multiple batches that can use more energy overall.

Is an air fryer cheaper than a gas oven?

Usually not. Gas costs far less per unit than electricity, so a gas oven can be as cheap as or cheaper than an air fryer to run. The air fryer's advantage is mainly against an electric oven.

Why does an air fryer use less energy than an oven?

It heats a much smaller space, often needs no preheating and cooks faster, and many models draw less power. Those factors combine to use far less electricity than the headline wattage suggests.

Related comparisons

Home & Bills

Heat Pump vs Gas Boiler

Compare heat pumps and gas boilers for installation cost, running cost and suitability.

Read comparison

Home & Bills

Heat Pump vs Electric Heating

Compare heat pumps and direct electric heating for running costs, installation, efficiency and carbon.

Read comparison