Oven 450°F · 230°C

450°F in the oven is 425°F in an air fryer

450°F in a conventional oven is about 425°F in an air fryer — reduce the temperature by 25°F and the time by roughly 20%. A 30-minute oven bake at 450°F becomes 23 to 26 minutes at 425°F, checked at 18 minutes. In Celsius that is 230°C down to 215°C.

450°F oven → air fryer
°F
min
Your air fryer

Roughly 5–6 qt / 5–6 L. The shape the conversion rule assumes.

Set air fryer to
375°F
Cook for
23–26 min

Set air fryer to 375 degrees Fahrenheit, cook for 23 to 26 minutes.

Check at 18 min and shake the basket. The USDA puts it plainly: cook times vary with the size and power of the machine, but the safe internal temperature never does.

How long, for a 450°F recipe

Oven time on the left, air fryer time on the right. The three columns are basket sizes — a small basket runs ahead of the rule, a large oven-style unit runs behind it. Check at the earliest figure in your column.

Oven time Small basket Standard basket Oven-style or dual
15 min 11–12 min · check 8 11–13 min · check 9 12–14 min · check 10
20 min 14–16 min · check 11 15–17 min · check 12 16–18 min · check 13
25 min 18–20 min · check 14 19–21 min · check 15 20–23 min · check 16
30 min 21–24 min · check 17 23–26 min · check 18 24–28 min · check 20
40 min 28–32 min · check 22 30–34 min · check 24 32–37 min · check 26
45 min 31–36 min · check 25 34–38 min · check 27 36–41 min · check 29
60 min 42–48 min · check 33 45–51 min · check 36 48–55 min · check 39

What to watch at 450°F

The top of most dials, and the setting where the conversion rule starts to break down — Cosori runs strip steak and large shrimp at 450°F outright rather than 25 degrees below an oven equivalent. At this temperature you are searing, and searing wants all the heat the machine has. Treat 425°F as a suggestion and watch the food instead of the clock.

Overcrowding the appliance can prevent enough air circulation to properly cook the food. — USDA Food Safety and Inspection Service.

Foods cooked near 425°F

These have their own sourced times, which beat any conversion. 56 foods are indexed in total.

Bacon 425°F · 6–8 min Raw Broccoli 425°F · 5–9 min Fresh Carrots 425°F · 10–16 min Fresh Cauliflower 425°F · 8–14 min Fresh Brussels Sprouts 415°F · 8–16 min Fresh Eggplant 435°F · 10–18 min Fresh

Browse every cook time

Other temperatures

300°F 325°F 350°F 375°F 400°F 425°F

Sources for the rule itself, including why it is a range rather than a single figure, are on the converter page. In short: no manufacturer or food agency publishes a conversion formula, and the most authoritative statement of it — University of Illinois Extension — says “reduce temperature by 25 to 30°F and reduce cooking time by 20%”.