With UK energy prices still higher than they were a few years ago, more households are asking the same question:
Are air fryers actually cheaper to run than ovens in the UK?
The short answer?
👉 In most small-kitchen households, yes — often significantly.
But the real answer depends on:
- The wattage of your appliance
- How long do you cook for
- Your electricity tariff
- The portion size
- And whether you’re cooking for 1–2 people or a family
In this guide, we’ll break down the real numbers for UK homes in 2026 and help you decide whether switching to an air fryer genuinely saves money.
If you’re still choosing a model, see our main guide to the Best Air Fryers for Small Kitchens (UK) for space-saving options.
How Much Electricity Does an Oven Use?
A typical UK electric oven uses:
- 2,000–3,000 watts (2–3kW)
If you cook for 45 minutes at 2.5kW, you’re using:
2.5kW × 0.75 hours = 1.875kWh
With the average UK electricity price hovering around 28–30p per kWh, that means:
Roughly 52–56p per use
And that’s before factoring in:
- Preheating time
- Heat loss
- Larger cavity space
Ovens are great for big meals — but inefficient for small portions.
How Much Electricity Does an Air Fryer Use?
Most small air fryers use:
- 1,200–1,700 watts (1.2–1.7kW)
For example:
- Ninja AF100UK – 1,550W
- Instant Vortex Digital – 1,500W
- Cosori 2L – 900–1,200W depending on model
- Tower T17025 – 1,000W
(You can compare exact specs in our individual reviews and comparisons.)
Let’s say you cook for 20 minutes at 1.5kW:
1.5kW × 0.33 hours = 0.5kWh
At 30p per kWh, that’s:
Around 15p per use
No preheat. Smaller cooking chamber. Faster cooking times.
That’s where the savings start adding up.
Air Fryer vs Oven: Cost Per Meal (UK Example)
Here’s a realistic comparison for a small household cooking chips or chicken for 1–2 people:
| Electric Oven | 2.5kW | 45 mins | ~55p |
| Air Fryer | 1.5kW | 20 mins | ~15p |
Estimated saving per meal: 35–40p
If you use it 5 times per week:
£1.75–£2.00 per week
£7–£8 per month
£85–£100 per year
For small kitchens and couples, that’s meaningful.
If you’d like a deeper breakdown, see our full Running Costs Guide.
Why Air Fryers Are More Efficient in Small Kitchens
Air fryers are especially cost-effective in smaller households because:
1. Smaller Cooking Space
They heat a compact chamber instead of a large oven cavity.
2. No Long Preheat
Most models reach temperature almost instantly.
3. Faster Cook Times
High-speed convection circulates heat efficiently.
4. Lower Wattage Models Available
Some compact options, like the Tower T17025 and the Cosori 2L, are designed for lower energy use.
If energy efficiency is your priority, also read our guide to Low Watt Air Fryers for UK Homes.
What If You’re Cooking for 1–2 People?
This is where air fryers shine.
For single portions or couples:
- An oven wastes unused cavity space.
- Heat escapes when opening the door.
- You’re powering 2–3kW for a small tray.
A 2L–3.8L air fryer is usually enough.
If you’re unsure what size works best, see:
👉 What Size Air Fryer Do I Need?
Or compare compact models directly:
- Cosori 2L vs Tower T17025
- Instant Vortex Digital vs Ninja AF100UK
Are Air Fryers Still Cheaper in Flats?
Yes — and often more practical.
In small flats:
- Less heat is thrown into the room.
- Less noise than you might expect
- Faster cooking reduces overall power draw.
If noise is a concern, read:
👉 Quiet Air Fryers for Small Kitchens
Most modern models sit between 45–65dB — similar to a microwave.
When Is an Oven Cheaper?
To be fair, ovens can be more cost-effective when:
- Cooking large family meals
- Batch cooking multiple trays
- Baking several dishes at once
If you’re filling the entire oven, the cost per portion becomes more efficient.
Air fryers are best for:
- Small households
- Quick meals
- Reheating
- Snacks
- Weeknight cooking
How Much Does an Air Fryer Cost to Run in 2026?
Electricity prices change yearly.
We’ve created an updated breakdown for this year here:
👉 How Much Does an Air Fryer Cost to Run in the UK in 2026?
That guide includes:
- Per-minute cost
- Weekly estimates
- Annual cost comparisons
- Wattage breakdown by model
Do Air Fryers Save Enough to Justify Buying One?
Let’s say a compact air fryer costs £70–£100.
If you save £80–£100 per year in energy:
It can effectively pay for itself within 12 months.
And that doesn’t include:
- Faster cooking
- Less heat in summer
- Easier cleaning
- No preheating
- Smaller footprint
If you’re considering one, see our main round-up of the Best Air Fryers for Small Kitchens (UK) to compare top-rated compact models.
What About Cleaning and Convenience?
Air fryers are often cheaper indirectly because:
- You don’t need foil trays.
- They’re easier to clean.
- Dishwasher-safe baskets reduce water usage.
- Less overall kitchen heat = less ventilation use
If easy cleaning matters to you, check:
👉 Easy-to-Clean Air Fryers for Small Kitchens
Final Verdict: Are Air Fryers Cheaper Than Ovens in the UK?
For most small UK households:
✔ Yes — air fryers are significantly cheaper per meal
✔ They cook faster
✔ They use less electricity
✔ They waste less heat
✔ They’re ideal for 1–2 people
Ovens still win for large family meals — but for everyday cooking in small kitchens, an air fryer is usually the more energy-efficient choice.
If you’re ready to compare models, start with our guide to the Best Air Fryers for Small Kitchens (UK) and explore the detailed comparisons to find the right fit.