🌡️ Oven to Air Fryer Conversion (Celsius)

Convert any oven recipe to air fryer temperature and time in °C — with a gas mark chart for UK cooks

min
°C

✅ Air Fryer Settings

Temperature
185
°C
Cooking Time
24
minutes

💡 Pro Tips

  • Reduce the oven temperature by about 15°C
  • Don't overcrowd the basket for best results
  • Shake or flip food halfway through
  • Preheat the air fryer 3-5 minutes

📊 Oven to Air Fryer Conversion Chart (Celsius)

Oven (°C) Air Fryer (°C) Time Reduction
150°C135°C20% less
160°C145°C20% less
170°C155°C20% less
180°C165°C20% less
190°C175°C20% less
200°C185°C20% less
220°C205°C20% less
240°C225°C20% less

🔥 Gas Mark to Air Fryer Conversion (UK)

Recipe written in gas marks? Find the gas mark, read across for the conventional oven temperature, then the air fryer setting. Reduce the cooking time by about 20% as well.

Gas Mark Oven (°C) Oven (°F) Air Fryer (°C)
Gas Mark 1140°C275°F125°C
Gas Mark 2150°C300°F135°C
Gas Mark 3170°C325°F155°C
Gas Mark 4180°C350°F165°C
Gas Mark 5190°C375°F175°C
Gas Mark 6200°C400°F185°C
Gas Mark 7220°C425°F205°C
Gas Mark 8230°C450°F215°C
Gas Mark 9240°C475°F225°C

How to Convert Oven Temperature to Air Fryer in Celsius

If your recipes and your air fryer both use Celsius — as they do across the UK, Ireland, Australia, New Zealand, and most of Europe — the conversion is simple. Lower the oven temperature by about 15°C and reduce the cooking time by roughly 20%. For example, a recipe that calls for 200°C in the oven becomes about 185°C in the air fryer, and 30 minutes becomes about 24 minutes.

The Celsius Rule of Thumb

The 15°C reduction is the metric equivalent of the well-known “drop 25°F” rule used in the United States. Both describe the same thing: an air fryer's fan makes it cook hotter and faster than a conventional oven at the same dial setting, so you ease off the temperature and the time. The calculator above does the maths for you and works in both °C and °F.

Fan Oven? Reduce Less

Many ovens in the UK and Australia are fan-forced (convection). If your recipe temperature is already a fan-oven temperature, only drop about 5–10°C for the air fryer, because a fan oven already moves hot air around. If the recipe gives a conventional (non-fan) temperature, use the full 15°C reduction. See our convection oven to air fryer converter for fan-oven recipes.

Quick Celsius References

The two most-searched conversions: 180°C in the oven is about 165°C in the air fryer, and 200°C in the oven is about 185°C in the air fryer. Going the other way, the common US settings translate to: 350°F = 177°C (often set as 175°C) and 400°F = 204°C (often set as 200°C).

Frequently Asked Questions

How do I convert oven Celsius to air fryer?

Reduce the oven Celsius temperature by about 15°C and cut the cooking time by roughly 20%. A recipe calling for 200°C in the oven becomes about 185°C in the air fryer. For a fan-forced oven, reduce by only 5–10°C since it already has a fan.

What is 180°C in an air fryer?

About 165°C. The standard rule is to lower a conventional oven temperature by 15°C when converting to an air fryer, so 180°C in the oven becomes roughly 165°C in the air fryer, with the time reduced by about 20%.

What is 200°C in an air fryer?

About 185°C in the air fryer, with the cooking time cut by around 20%. If your 200°C figure is already a fan-oven temperature, set the air fryer closer to 190°C instead.

How do I convert gas mark to air fryer?

Use the gas mark chart above: find your gas mark, read across to the air fryer Celsius value, and reduce the time by about 20%. For example, Gas Mark 6 (200°C) becomes about 185°C in the air fryer.

Does the air fryer conversion work the same in Australia and the UK?

Yes. The 15°C reduction applies anywhere recipes use Celsius. The only thing to watch is whether your recipe temperature is for a conventional or a fan-forced oven — reduce less for fan-forced. Gas marks are mainly a UK and Ireland convention, which is why we include the gas mark chart above.