Oven to Air FryerConversion Calculator
Enter your oven recipe’s temperature and time. Get air fryer settings for the food you are cooking, based on two published guides.
- Pick the food type
- °F or °C
- Time range, not one number
- Sources and limits shown
Your oven recipe
Free, instant, nothing is stored
A starting point, not a guarantee. Air fryers differ, so check early. Not tested in our kitchen.
Your estimate
Enter your oven temperature and time, then press Convert.
About this oven to air fryer conversion calculator
An oven to air fryer conversion calculator turns the temperature and time in an oven recipe into air fryer settings. This one uses the rule of thumb two published guides agree on: lower the temperature and shorten the time. You pick the kind of food, because the guides give different cuts for frozen food, vegetables, meat and baked goods. Many recipes on this site give oven times, so the converter sits beside them.
It gives a range for the time and says so on purpose. Air fryers differ in size and power, so the range is where to start checking, not when the food is done.
The rule for each food type
These are the numbers the calculator uses. Both guides call them a rule of thumb, and the sources are linked at the bottom.
| Food | Temperature | Time | Where it comes from |
|---|---|---|---|
| Most oven recipes | 25 to 50°F lower | About 20 to 25% less | Instacart, 11 Dec 2025. UMaine Extension (7 May 2026) says 25 to 50°F lower and 20 to 50% less time. |
| Meat and poultry | 25°F lower | About 20 to 25% less (general rule) | Instacart. It gives no separate time cut for meat. |
| Vegetables and potatoes | 25°F lower | About 20% less | Instacart |
| Frozen food | Same as the oven | 30 to 50% less | Instacart |
| Cookies and baked goods | About 50°F lower | About 20% less | Instacart |
- Pick the food type and enter the oven temperature and time.
- The calculator lowers the temperature by the amount in the table and rounds to the nearest 5.
- It cuts the time by the percentage range and shows the shortest and longest time.
- Start checking at the halfway mark, and shake or flip.
What the calculator gives for common oven settings
These rows are the calculator’s own arithmetic applied to the rules above. I have not air-fried these exact batches, so treat them as starting points.
| Oven recipe | Air fryer temperature | Air fryer time |
|---|---|---|
| Any oven recipe, 400°F for 40 minutes | 350 to 375°F | 30 to 32 minutes |
| Chicken pieces, 400°F for 25 minutes | 375°F | 19 to 20 minutes |
| Chicken wings, 450°F for 45 minutes (35 + 10) | 425°F | 34 to 36 minutes |
| Roasted potatoes, 425°F for 30 minutes | 400°F | 24 minutes |
| Frozen fries, 425°F for 20 minutes | 425°F | 10 to 14 minutes |
| Cookies, 350°F for 12 minutes | 300°F | 10 minutes |
Where the stated rule and the worked examples disagree
Instacart states its percentages, then gives worked examples. Put side by side, the examples for potatoes and cookies are shorter than its own rule. The cuts below are our arithmetic from the numbers on its page.
| Food | Stated cut | Worked example | Cut in the example |
|---|---|---|---|
| Roasted potatoes | About 20% | 30 minutes in the oven, 18 to 20 minutes in the air fryer | 33 to 40% |
| Cookies | About 20% | 12 minutes in the oven, 8 to 9 minutes in the air fryer | 25 to 33% |
| Chicken | 20 to 25% (general rule) | 25 minutes in the oven, 18 to 20 minutes in the air fryer | 20 to 28% |
| Frozen fries | 30 to 50% | 20 minutes in the oven, 10 to 12 minutes in the air fryer | 40 to 50% |
Small, thin pieces such as cookies and cut potatoes may need the shorter times. Instacart’s own troubleshooting line says if food comes out dry, start with a 30% time reduction next time. That is why the calculator shows a range, and why the halfway check matters.
Check the temperature, not just the clock
A converted time is a guess. For meat, the USDA gives the temperature that counts, measured with a food thermometer.
| Food | Minimum internal temperature |
|---|---|
| All poultry (breasts, whole bird, legs, thighs, wings) | 165°F |
| Ground meats | 160°F |
| Beef, pork, veal and lamb steaks, chops and roasts | 145°F, then rest at least 3 minutes |
| Fish and shellfish | 145°F |
| Leftovers and casseroles | 165°F |
The USDA’s chart was last updated on 14 April 2025 and says to cook to these temperatures as measured with a food thermometer.
“I would get yourself an instant read thermometer. That way you can see how close you’re getting you can test it once it’s out it’ll give you some peace of mind.”r/airfryer, December 2025 (41 upvotes). A single account, not an official source.
Our take: the calculator can tell you when to start checking. Only a thermometer can tell you the chicken is done, and 165°F is the number to check against.
What air fryer owners say about converting
“Not everything needs 400 degrees. You just need to play with it more and check more often. Every brand and type of air fryer is different. You just need to learn yours.”r/airfryer, November 2025 (6 upvotes). A single account, not an official source.
Our take: this matches the sources, which both call 25 to 50°F and the time cut a rule of thumb. Use our range for the first batch, then write down what worked in your machine.
“Was the chicken completely thawed?”r/airfryer, December 2025 (13 upvotes). A single account, not an official source.
Our take: a good question. The calculator assumes the food is in the same state as the oven recipe. Frozen food follows a different rule, which is why it has its own choice in the menu.
What to do besides the numbers
- Preheat. UMaine Extension says letting the air fryer preheat helps food cook evenly, and Instacart suggests three to five minutes.
- Leave space. UMaine says if the basket is too full the food will steam. Instacart says to cook in a single layer.
- Shake or flip. UMaine says to shake the basket halfway. Instacart says to shake small items such as fries, wings and vegetables every five to seven minutes.
Limits of this calculator
- Two sources. The rules come from one grocery-delivery guide and one university extension article. We did not find a manufacturer’s own conversion rule, so check your model’s manual.
- Your machine. Basket size, wattage and shape change results, and the calculator does not know them.
- Not every food. Batters, whole birds and large roasts are outside what the two guides cover, so use the food thermometer.
- Not tested here. I have not cooked each example row in an air fryer, and the page says so.
Oven to air fryer conversion questions
How do you convert an oven recipe to an air fryer?
Lower the temperature by 25 to 50°F and cut the time by about 20 to 25%, then check early. Instacart gives those numbers as a rule of thumb, and UMaine Extension gives 25 to 50°F and 20 to 50%.
How much do you lower the temperature?
Instacart says 25 to 50°F for most recipes, 25°F for meat and vegetables, and about 50°F for baked goods. For frozen food it says to keep the oven temperature.
How much shorter is the cooking time?
About 20 to 25% for most food, according to Instacart. Frozen food is cut by 30 to 50%.
Do I need to preheat an air fryer?
UMaine Extension says preheating helps food cook evenly. Instacart suggests three to five minutes.
What temperature is chicken done?
The USDA minimum for poultry is 165°F, measured with a food thermometer.
Can I use the calculator in Celsius?
Yes. Choose °C. The calculator converts to Fahrenheit, applies the rule and rounds back to the nearest 5°C.
Sources
Rules: Instacart, oven-to-air-fryer conversion guide (dated 11 December 2025) and UMaine Cooperative Extension, Air Fryer 101 (7 May 2026). Safe temperatures: USDA FSIS, Safe Minimum Internal Temperature Chart (updated 14 April 2025). All three were read on 26 October 2026. Reddit quotes are single posters and not official sources. Instacart is a retailer, so we treat its numbers as a guide and not a standard.