How Much Electricity Does an Air Fryer Use in New Zealand?

If you've swapped your oven for an air fryer, you've probably wondered how that shows up on your power bill. Air fryers have a reputation for being cheap to run, but the real cost depends on the wattage of your model, how long you cook for, and what you're paying per kWh. Here's how to work out exactly what your air fryer costs to run in New Zealand, with real numbers you can apply to your own kitchen.

How Many Watts Does an Air Fryer Use?

Most air fryers on the market draw somewhere between 800W and 2,000W, and wattage generally tracks with basket size. A compact 1 to 2 person model tends to sit at the lower end, while a large family-sized drawer or dual-zone unit sits closer to the top. As an example from our own range, the Ninja AF141 Pro 4.7L Air Fryer is rated at 1,750W, which is fairly typical for a mid-to-large single-drawer model.

Wattage tells you the maximum rate of power draw, not necessarily what the element uses for the whole cook. Many air fryers cycle the heating element on and off to hold a set temperature, so actual draw over a full cook is often a bit lower than the rated wattage suggests. For a simple, conservative estimate of running cost, it's still reasonable to calculate against the rated wattage on the appliance's spec label.

How Much Does It Cost to Run an Air Fryer in NZ?

To work out running cost, you need three numbers: the appliance's wattage, how long you run it for, and your power price per kWh. The formula is:

Cost = (Watts ÷ 1,000) × Hours Used × Price per kWh

According to MBIE's Quarterly Survey of Domestic Electricity Prices, the New Zealand average residential power price was 39.3c per kWh (including GST) as at February 2026, though this varies by region and retailer. Using that national average, here's what a 30-minute cook costs across the typical wattage range:

Air Fryer Running Costs by Size (30-Minute Cook)

Cooking dinner in an air fryer most nights adds up to a modest weekly cost. At 1,750W for 30 minutes a night, five nights a week, you're looking at roughly $1.72 a week, or a little under $90 a year at the current national average price. Compare that against your actual power bill's per-kWh rate for a more accurate figure, since prices in some regions run higher than the national average.

Air Fryer vs Oven: Which Uses Less Power?

A standard full-size electric oven typically draws somewhere in the 2,000W to 3,000W range, and unlike most air fryers, it usually needs a 10 to 15 minute preheat before you even start cooking. An air fryer's smaller cooking cavity heats up almost immediately and cooks many foods faster than an oven at the same temperature, so the total energy used for a given meal is often noticeably lower, even though the air fryer's wattage rating looks similar or higher on paper.

This is where air fryers earn their reputation as the more efficient option for small to medium meals. Where they lose that advantage is at scale. A single large family-sized air fryer running for an hour to get through several batches can end up costing about the same as an oven that cooks the whole meal in one go. If you regularly cook for a crowd, it's worth comparing your actual cook times rather than assuming the air fryer always wins.

How to Reduce Your Air Fryer's Running Costs

A few habits make a real difference to what your air fryer costs you over a year:

• Don't overload the basket. A packed basket needs longer to cook through evenly, which means more time drawing power. Cook in batches instead if needed.
• Keep the door or drawer closed while cooking. Every time you open it, the unit loses heat and has to work harder to recover the set temperature.
• Match the size to your household. A large dual-zone air fryer left running for a single portion uses more power than necessary. A compact model is cheaper to run for smaller meals.
• Use the lowest effective temperature. Many recipes are written for higher heat than needed. Dropping the temperature by 10-20°C and adding a few minutes' cook time can lower peak power draw.
• Clean the basket and heating element regularly. A build-up of grease or crumbs can affect airflow and force the appliance to run longer to reach the same result.

Browse our full range of air fryers to compare wattage and capacity across brands, or see our wider kitchen appliances range if you're weighing an air fryer up against other cooking appliances.

Frequently Asked Questions

Does an air fryer use a lot of electricity?

Not compared to a full-size oven. Most air fryers use a lower maximum wattage than a full-size electric oven, and because they generally heat a smaller space and require little or no preheating, they can use substantially less electricity for smaller meals.

How much does it cost to run an air fryer for an hour in NZ?

At the national average power price of 39.3c per kWh, a 1,750W air fryer costs roughly 69c to run for a full hour. A smaller 900W model costs around 35c for the same hour. Your actual cost will depend on your region's power price.

Is it cheaper to use an air fryer or an oven?

For most everyday meals, yes. Air fryers heat up faster and cook in less time, so even with a similar wattage rating, the total power drawn per meal tends to be lower than an oven, especially for smaller portions.

Does air fryer wattage affect cooking quality?

Higher-wattage models generally reach and hold temperature more consistently, which can mean crispier results and shorter cook times. Lower-wattage models still cook well but may need slightly longer.

What size air fryer uses the least power?

Smaller 1 to 2 person air fryers, typically in the 800W to 1,200W range, use the least power per cook. They're a good fit if you're mainly cooking for one or two people rather than batch-cooking for a family.

The Bottom Line

An air fryer is one of the cheaper appliances to run in most New Zealand kitchens, provided you match the size to how you actually cook. Check the wattage on your model's spec label, apply the formula above with your own power price, and you'll have a realistic figure rather than a guess. If you're shopping for a new one, our Air Fryers collection lists the wattage and capacity for every model, so you can pick a size that suits your household without overpaying to run it.