Quick Answer: To work out what an air fryer costs to run, use Cost = (Wattage ÷ 1000) × Hours Used × Price per kWh. A typical 1500 W air fryer used 30 minutes a day costs about £0.18 per day (≈£5.50/month) at the UK rate of £0.245/kWh, or roughly $0.13 per day (≈$3.80/month) at the US average of $0.17/kWh. Air fryers are usually 30–60% cheaper to run than a full-size electric oven because they heat a smaller space far faster. Use the calculator below for your exact figure.
Air Fryer Running Cost Calculator
Most air fryers are 800–2100 W (check the label on the back).
Find this on your energy bill (price per unit / per kWh).
How to Calculate Air Fryer Running Cost
The running cost of any electrical appliance comes down to three numbers: how much power it draws (watts), how long you run it, and what you pay for electricity. The formula is:
Running Cost = (Watts ÷ 1000) × Hours Used × Price per kWh
Dividing watts by 1000 converts to kilowatts. Multiply by the hours of use to get kilowatt-hours (kWh) — the unit your energy supplier bills you in — then multiply by your price per kWh.
Worked Example (UK & US)
A 1500 W air fryer used for 30 minutes (0.5 hours):
- Energy used = (1500 ÷ 1000) × 0.5 = 0.75 kWh
- UK: 0.75 × £0.245 = £0.18 per use → about £5.59/month, £67/year
- US: 0.75 × $0.17 = $0.13 per use → about $3.88/month, $47/year
Air Fryer Running Cost by Wattage (UK rate, 30 min/day)
| Air fryer power | Per use (30 min) | Per month | Per year |
|---|---|---|---|
| 800 W | £0.10 | £2.98 | £35.77 |
| 1200 W | £0.15 | £4.47 | £53.66 |
| 1500 W | £0.18 | £5.59 | £67.07 |
| 1800 W | £0.22 | £6.71 | £80.49 |
| 2100 W | £0.26 | £7.82 | £93.90 |
Air Fryer Running Cost by Wattage (US rate, 30 min/day)
| Air fryer power | Per use (30 min) | Per month | Per year |
|---|---|---|---|
| 800 W | $0.07 | $2.07 | $24.82 |
| 1200 W | $0.10 | $3.10 | $37.23 |
| 1500 W | $0.13 | $3.88 | $46.54 |
| 1800 W | $0.15 | $4.65 | $55.85 |
| 2100 W | $0.18 | $5.43 | $65.16 |
Air Fryer vs Oven: Which Is Cheaper to Run?
A standard electric oven draws 2000–2400 W and takes 10–15 minutes just to preheat, then runs longer to cook. An air fryer reaches temperature in 2–3 minutes and cooks faster, so even at a similar wattage it uses far fewer kWh per meal.
| Appliance | Typical power | Time for a meal | Energy used | UK cost |
|---|---|---|---|---|
| Air fryer | 1500 W | 20 min | 0.50 kWh | £0.12 |
| Electric oven | 2100 W | 45 min (incl. preheat) | 1.58 kWh | £0.39 |
| Microwave | 900 W | 10 min | 0.15 kWh | £0.04 |
For most single meals, the air fryer is the cheaper choice over a conventional oven — typically saving 60–70% of the energy. The microwave is cheaper still for reheating, but can’t crisp food.
Tips to Cut Your Air Fryer Running Cost
- Skip the preheat when a recipe allows — air fryers heat up almost instantly.
- Cook in batches so you use one heating cycle for more food.
- Choose the right size — a model that’s too big wastes energy heating empty space.
- Check your tariff — even a small drop in your price per kWh lowers every appliance’s cost. Compare with our Solar Panel Savings Calculator.
Frequently Asked Questions
How much does it cost to run an air fryer per hour?
A 1500 W air fryer uses 1.5 kWh per hour. At the UK rate of £0.245/kWh that is about £0.37 per hour; at the US average of $0.17/kWh it is about $0.26 per hour.
Is an air fryer cheaper than an oven?
Yes, in most cases. Air fryers heat up in 2–3 minutes and cook faster, using around 60–70% less energy than a full-size electric oven for a single meal, even though their wattage can be similar.
How do I find my air fryer’s wattage?
Check the rating label on the back or base of the unit, or the manual. Most air fryers are between 800 W and 2100 W, with 1400–1700 W being the most common.
What electricity rate should I use?
Use the price per kWh (per unit) shown on your latest energy bill. As a guide, UK is around £0.245/kWh, the US average is about $0.17/kWh, and the EU averages roughly €0.28/kWh — but rates vary by region and tariff.
Does air fryer wattage affect the cost a lot?
It scales directly: doubling the wattage doubles the energy used for the same time. A 2100 W model costs about 40% more to run than a 1500 W model used for the same duration.
How much does an air fryer cost to run per month?
A 1500 W air fryer used 30 minutes a day costs roughly £5.59/month in the UK or $3.88/month in the US. Use the calculator above for your exact wattage, usage and rate.
Conclusion
Air fryers are cheap to run because they cook small portions quickly with little preheating. The cost is just (watts ÷ 1000) × hours × your price per kWh — typically only a few pence or cents per use. Enter your own wattage, daily usage and electricity rate in the calculator above to see exactly what your air fryer adds to your bill each day, month and year.
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