How Many Watts Does an Air Fryer Use — and What Does It Cost? Cost Table by Wattage + Oven/Microwave Comparison
Bought an air fryer and worried about the bill? An air fryer draws a lot of power but only for a short cook, so the cost per use is lower than most people fear. This page shows the real watts an air fryer draws, how to work out the cost per cook and per month, a table by wattage, how it compares with an oven and a microwave, and how to use it for the least electricity.
A typical air fryer draws about 1,200–1,800 watts (small 2–3.5 L units ~1,200–1,500 W; large/dual-basket models can reach ~2,000 W — check the nameplate). But because a cook is only 10–20 minutes, it costs just about 1–2 THB per use. Example: a 1,500 W air fryer for 15 minutes = 0.375 units × ~4 THB ≈ 1.5 THB per cook; once a day for a month is about 45 THB. The real per-unit rate changes each period — see the latest at how many baht per unit.
How to Work Out What Your Air Fryer Costs, Step by Step
Same formula as every appliance: power (kilowatts) × hours used × the per-unit rate. Four steps:
1) Find the power in watts — check the side label or manual (marked W or watts). Most air fryers are 1,200–1,800 W; dual-basket or large-capacity models can be higher.
2) Convert to kilowatts (kW) — divide watts by 1,000, e.g. 1,500 W = 1.5 kW.
3) Multiply by the cook time = units (kWh) — kW × hours, e.g. a 15-minute cook = 0.25 h → 1.5 kW × 0.25 = 0.375 units.
4) Multiply by the per-unit rate = baht — units × rate, e.g. 0.375 × ~4 THB ≈ 1.5 THB per cook. Note: preheating first or cooking longer adds a little to this.
The ~4 THB/unit is a round figure for easy math (an estimate). Real home bills are tiered (more usage = higher per-unit) and include Ft + VAT. See the real tiered rates at how many baht per unit, or compute your whole-home bill at how to calculate your bill.
Table: Air Fryer Watts and What It Costs
Priced at ~4 THB/unit (an estimate). “Per cook” is about a 15-minute cook; “per month” is once a day × 30 days. For every appliance in the home, see the appliance electricity cost table:
| Power | Per cook (15 min) | Per month (daily) |
|---|---|---|
| 1,200 W | ~1.2 THB | ~36 THB |
| 1,500 W | ~1.5 THB | ~45 THB |
| 1,800 W | ~1.8 THB | ~54 THB |
* Figures are approximations for comparison only. Actual cost depends on the real nameplate watts, the cook time, whether you preheat, and your home's tiered rate. A 25–30 minute cook or a preheat runs above this table.
Air Fryer vs Oven vs Microwave: Which Uses More Electricity?
The answer is “power × time”, not just the watt number. A high-watt device used briefly can cost less than a low-watt one left on long:
Air fryer
1,200–1,800 W for 10–20 minutes uses about 0.2–0.6 units per cook = ~1–2 THB. Best for small–medium portions: the small chamber heats fast, with little of the long preheat an oven needs.
Electric oven
About 1,500–2,500 W, but it preheats and bakes for 30–60 minutes, so it uses several units per session. Worth it for large batches (big tray/many pieces); for a small portion, an air fryer is clearly cheaper.
Microwave
Real input power is about 1,100–1,550 W, but it runs only 3–5 minutes, so it costs the least per use (~0.25–0.40 THB). Best for reheating rather than crisping — a different job from an air fryer.
Bottom line: per use, microwave < air fryer < oven (for small portions). Match the device to the task, and read the real watts on the No.5 (เบอร์ 5) label instead of guessing from the appliance name.
6 Ways to Run Your Air Fryer for Less
An air fryer isn't a heavy user to begin with, but you can trim it further:
Preheat only when needed — the small chamber heats fast; many dishes need little or no preheat, cutting 3–5 minutes of run time.
Cook a full basket at once — fill the basket appropriately (not so packed that air can't circulate) and finish in one go, rather than several reheated rounds.
Set an accurate timer — don't leave it running over; most foods finish in 10–20 minutes. A precise timer saves power and prevents burning.
Shake/flip instead of adding time — shaking the basket midway cooks evenly and is usually faster than padding the timer.
Pick a high-star No.5 model — when buying, check the No.5 (เบอร์ 5) efficiency label (more stars = fewer kWh/year). See how to compare at the No.5 label & 1–5 stars.
Want to cut the whole bill, not just the air fryer — the air fryer is tens of baht a month; the real heavy users are the aircon and water heater. See the big picture at how to cut your home bill.
About this page
Compiled by the CapSolar team, led by Frank Lee (Founder). The method uses power (watts) × time × per-unit rate. The air-fryer wattage range reflects typical Thai-market units and our own appliance-wattage dataset. Table figures are approximations for comparison; actual cost depends on the nameplate and your home's tiered rate.
FAQ
High home bill from lots of electric kitchen gear?
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