Watts to kWh
kWh = (W ÷ 1,000) × hours × load factor. Multiply kWh by your electricity price to estimate energy cost.
🍟 Worked example
How much electricity does a air fryer use?
Start with a transparent example, then replace the assumptions with your own wattage, operating time and electricity price.
0.60 kWhper day of use
3.60 €per month at 0.20 €/kWh
Worked example
1500 W × 0.4 h/day × 100 % load factor × 30 days.
18.00 kWh/month · 43.20 €/year
This is an energy-only estimate. Your bill can also include standing charges, taxes and other household consumption.
Typical reference range
Use the label, manual or manufacturer data for your exact model whenever possible.
| Type or situation | Indicative reference |
|---|---|
| Compact | 1,000–1,400 W |
| Medium size | 1,400–1,800 W |
| Large / dual basket | 1,700–2,500 W |
What changes the result?
Rated watts are only one part of the calculation.
Measure when possible
Thermostats, compressors, inverter control and programmes can make real consumption lower or higher than a simple maximum-power estimate.
Practical checks
- Avoid preheating when the recipe and manufacturer do not require it.
- Compare total cooking time with an oven, not watts alone.
- Keep the basket and air path clean.
Compare more appliances
Return to the appliance library or use the general electricity calculator for any device.
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