Air Fryer Conversion Calculator

Enter the temperature and time from any oven recipe and this tool converts it to air fryer settings, using the standard rule of a lower temperature and a shorter cook time.

Air fryer temperature375

Air fryer time16 min

How this calculation works

Air fryers are small convection ovens: a fan circulates hot air tightly around the food, so heat transfers faster than in a full-size oven at the same dial setting. To land in the same finished spot, cooks lower the set temperature and shorten the time rather than changing both to match the oven exactly.

This calculator applies the widely used rule of thumb: subtract 25°F (or 15°C) from the oven temperature, and multiply the oven time by 0.8 (a 20% cut). So a 400°F, 20-minute oven recipe becomes roughly 375°F for about 16 minutes in the air fryer.

These are starting points, not guarantees. Air fryer baskets, wattages, and airflow vary a lot between models, and food shape, thickness, and batch size all change how fast heat penetrates — always check for doneness a few minutes before the calculated time.

Worked example

A recipe calls for baking chicken tenders at 400°F for 20 minutes. Converting: 400 − 25 = 375°F, and 20 × 0.8 = 16 minutes. Start checking the tenders around the 13–14 minute mark, since air fryer baskets vary and thinner pieces cook faster.

The conversion rule explained

The core adjustment is simple: lower the oven's set temperature by about 25°F (15°C), and cut the cook time by roughly 20%. This works because an air fryer's small chamber and forced air circulation deliver heat more efficiently than a large oven cavity, so less energy and time are needed to reach the same result.

Common oven-to-air-fryer conversions

Here are a few frequently searched oven settings converted using the same rule this calculator applies:

Oven (°F / min)	Air fryer (°F / min)	Typical food
350°F / 25 min	325°F / 20 min	Frozen fries, chicken nuggets
375°F / 30 min	350°F / 24 min	Bone-in chicken pieces
400°F / 20 min	375°F / 16 min	Breaded chicken tenders
425°F / 15 min	400°F / 12 min	Vegetables, salmon fillets
450°F / 10 min	425°F / 8 min	Bacon, thin cutlets

Tips for better air fryer results

Preheat for 3–5 minutes when a crisp exterior matters, such as fries or breaded items.
Arrange food in a single layer with space between pieces so hot air can circulate on all sides.
Shake the basket or flip the food halfway through cooking for even browning.
Check doneness a few minutes before the calculated time, especially the first time you try a recipe.
Lightly oil or spray food rather than deep-frying batter, which can drip through the basket.
Use a meat thermometer for proteins — visual cues alone can be misleading in an air fryer.

Why results still vary between air fryers

Wattage, basket depth, and fan placement differ across brands and models, so the same setting can cook noticeably faster or slower from one air fryer to another. Frozen versus fresh food, thickness, and how full the basket is all shift the actual time too. Treat the calculator's output as a reliable starting point, then fine-tune based on how your specific machine performs.

Frequently asked questions

Why do air fryers need a lower temperature and shorter time?

The compact chamber and strong fan circulate hot air directly against the food's surface, so heat transfers faster than the slower, more indirect convection in a full-size oven. Lowering the temperature and cutting the time compensates for that faster transfer so food doesn't overcook or burn on the outside before the inside is done.

Does this work for every food?

It works well as a general baking and roasting guideline for things like chicken, fries, vegetables, and breaded items. Delicate baked goods, large roasts, and foods that need very precise timing (like custards) may need extra testing and small manual adjustments beyond this rule of thumb.

Do I need to preheat the air fryer?

Most air fryers benefit from a short 3–5 minute preheat at the target temperature, especially for foods that need a crisp exterior like fries or breaded cutlets. Check your model's manual — some newer air fryers heat up so fast that preheating is optional.

Should I use a single layer of food?

Yes. Air fryers cook by circulating air around the food, so overlapping or stacking pieces blocks airflow and leads to uneven, soggier results. Cook in a single layer and work in batches if needed, shaking or flipping halfway through for even browning.

Why does my food finish earlier or later than the calculated time?

Air fryer models differ significantly in wattage, basket size, and fan strength, and food batch size, thickness, and starting temperature (fresh vs. frozen) all change cook time. Treat the calculated numbers as a starting point and check for doneness a few minutes early the first time you make a recipe.

Do I need to adjust liquid or breading in the recipe itself?

Usually not for the recipe's ingredients, but wet batters that work in deep frying can drip through an air fryer basket. A light coat of oil and a dry breading (flour, egg, breadcrumbs) generally crisps better than a wet batter in an air fryer.

Does this calculator store or send my recipe data anywhere?

No. Everything runs locally in your browser — the numbers you enter are never uploaded, logged, or saved anywhere.

This tool is provided for general information only. Verify important figures independently. · Last reviewed: August 25, 2026