350°F for 25 minutes in an oven becomes 325°F (165°C) for 20 minutes in an air fryer. Both values change together: subtract 25°F (15°C) from the temperature and multiply the time by 0.8.
An air fryer conversion restates oven instructions so they produce the same result in a smaller, faster appliance. This page covers this specific temperature-and-time pair, the reasoning behind both adjustments, the foods it applies to, and the conditions under which it needs modifying.
| Oven | Air fryer | |
|---|---|---|
| Temperature | 350°F / 180°C | 325°F / 165°C |
| Time | 25 min | 20 min |
| Check at | — | 14 min |
Convert your own recipe. The oven to air fryer conversion calculator applies both adjustments to any temperature and time, including the wattage and basket-load notes above.
Why do both values change?
The two adjustments correct different things. The temperature reduction compensates for the surface effect — moving air strips the insulating boundary layer off the food, so the exterior browns and dries faster at the same dial setting. The time reduction compensates for the bulk effect — faster surface heat transfer creates a steeper gradient into the food, so the centre reaches its target sooner.
Applying only one produces a predictable failure. Reducing the time alone leaves the surface overcooked; reducing the temperature alone leaves the food underdone at the original time.
Which foods use 350F (175C) for 25 minutes?
350°F (175°C) is the default baking temperature in American recipes, and 25 minutes is one of the most common durations. Typical examples include boneless chicken breast, baked casseroles, meatloaf portions, roasted vegetables, and many quick breads.
Does this pair work for baking?
Reduce the time by 15% rather than 20% for cakes, muffins and anything that rises — 25 minutes becomes 21 rather than 20. Batter sets from the outside in, and an air fryer’s fan can crust the top before the centre finishes.
Cookies need a larger change in the other direction: 50°F (10°C) off rather than 25°F (-5°C).
What if my air fryer only offers 10-degree steps?
Use 320°F (160°C) or 330°F (165°C). A 5°F (3°C) difference is well inside the calibration variance of a consumer air fryer and will not change the outcome.
Related conversions
The oven to air fryer conversion calculator applies these figures to any recipe, whichever model you own.
The same rule applies to every temperature and time pair. The general form is: air fryer temperature = oven temperature − 25°F (-5°C), and air fryer time = oven time × 0.8.
Frequently asked questions
What is 350F for 25 minutes in an air fryer?
325°F (165°C) for 20 minutes.
Do I change the temperature and the time?
Yes, both. Subtract 25°F (-5°C) and multiply the time by 0.8.
When should I check it?
At about 14 minutes on the first attempt, then note the actual finish time.
Does this work for cake?
Reduce the time by 15% instead — 21 minutes rather than 20.