Air Fryer Conversion Calculator
Convert oven times and temperatures to air fryer settings and back, in °F or °C, by a rule of thumb: 25°F (15°C) lower and 80% of the time, or the reverse. How it works
Use the Air Fryer Conversion Calculator
About the Air Fryer Conversion Calculator
To convert an oven recipe to an air fryer, lower the temperature by 25°F and cook for about 80% of the time: 25 minutes at 350°F becomes 20 minutes at 325°F. From air fryer to oven it adds 25°F and multiplies the time by 1.25. In °C the step is 15°C, so 180°C becomes 165°C. This is a rule of thumb, not a manufacturer setting.
Oven recipe to air fryer
| Oven setting | Air fryer setting |
|---|---|
| 15 min at 325°F | 12 min at 300°F |
| 20 min at 350°F | 16 min at 325°F |
| 25 min at 350°F | 20 min at 325°F |
| 30 min at 375°F | 24 min at 350°F |
| 40 min at 400°F | 32 min at 375°F |
| 45 min at 425°F | 36 min at 400°F |
| 60 min at 350°F | 48 min at 325°F |
Temperature minus 25°F, time × 0.8 rounded to the minute.
Air fryer recipe to oven
| Air fryer setting | Oven setting |
|---|---|
| 10 min at 350°F | 13 min at 375°F |
| 12 min at 375°F | 15 min at 400°F |
| 15 min at 400°F | 19 min at 425°F |
| 20 min at 375°F | 25 min at 400°F |
| 25 min at 400°F | 31 min at 425°F |
| 30 min at 350°F | 38 min at 375°F |
Temperature plus 25°F, time × 1.25 rounded to the minute: 10 minutes is 12.5 and shows as 13.
How to use this tool
- Choose the direction: oven to air fryer, or air fryer to oven.
- Enter the time in minutes and the temperature in °F or °C.
- Read the converted time and temperature, and check the food early.
Frequently asked questions
- How do I convert oven time to air fryer time?
- Multiply the oven minutes by 0.8 and round, and lower the temperature by 25°F. 30 minutes becomes 24, 45 becomes 36 and 60 becomes 48.
- What air fryer temperature do I use for a 400°F oven recipe?
- 375°F, for 80% of the oven time. A 30-minute recipe at 400°F comes out as 24 minutes at 375°F.
- How do I convert an air fryer recipe to the oven?
- Add 25°F and multiply the time by 1.25, rounded. 20 minutes at 375°F in an air fryer becomes 25 minutes at 400°F in an oven, and 25 minutes becomes 31 (31.25 rounded).
- Is the 25°F and 20% rule accurate?
- It is a widely repeated rule of thumb, not a manufacturer specification, and no source is cited here that tests it. A full basket, frozen food and wet batters tend to need longer than a single layer of fresh food, and models differ in size and fan power. Open the basket a few minutes before the converted time, turn or shake small pieces halfway, and follow your air fryer’s guide for the first batch.
- Can I use it with Celsius?
- Yes. Switch the temperature unit to °C and the step becomes 15°C, the round figure Celsius recipes use; 25°F is exactly 13.9°C, so the two units can differ by a degree or two. 180°C in an oven becomes 165°C in the air fryer, and 25 minutes becomes 20. Switching units converts the typed temperature to whole degrees: 350°F becomes 177°C, which the rule turns into 162°C against 325°F in °F. The time rule is the same in both units.
- What times and temperatures does it accept?
- Time from 2 to 1440 minutes and temperature from 150 to 600°F or 66 to 315°C, in either direction; a value outside that shows a message and no result. The tool applies no floor, so a 300°F oven recipe gives 275°F.
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