Sheet pan chicken shawarma bowls
Recipe from Mediterranean Diet Plan, from their Instagram reel. Roasts at 425 °F.
- In Celsius220 °C
- In a fan oven200 °C
- As a gas mark7
Oven temperatures.
An American recipe and a British oven, or a fan oven and a recipe written for a conventional one. Get every scale at once.
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Oven temperature chart
Every gas mark with its conventional, fan and Fahrenheit setting, as recipe books print them.
| Gas mark | °C | Fan °C | °F | Heat |
|---|---|---|---|---|
| ¼ | 110° | 90° | 225° | Very cool |
| ½ | 120° | 100° | 250° | Very cool |
| 1 | 140° | 120° | 275° | Cool |
| 2 | 150° | 130° | 300° | Cool |
| 3 | 160° | 140° | 325° | Moderate |
| 4 | 180° | 160° | 350° | Moderate |
| 5 | 190° | 170° | 375° | Moderately hot |
| 6 | 200° | 180° | 400° | Moderately hot |
| 7 | 220° | 200° | 425° | Hot |
| 8 | 230° | 210° | 450° | Very hot |
| 9 | 240° | 220° | 475° | Very hot |
The fan oven rule
Take 20 °C (about 25 °F) off any conventional temperature. A fan keeps hot air moving instead of letting it settle in layers, so heat reaches the surface of the food faster. Same number on the dial, more heat where it counts.
When the conversion isn’t the problem
If a recipe keeps failing at the right temperature, suspect the oven before the maths. The top of most ovens runs hotter than the middle, and a crowded shelf blocks enough air to undo the conversion.
Cooking in an air fryer?
It needs a shorter time as well as a lower temperature. Use the air fryer converter.
Real recipes, converted.
Three oven temperatures from published recipes, run through the chart above.
Slow-cooked lamb shoulder
Recipe from Scoff, from their YouTube video. Roasts at 140 °C.
- In Fahrenheit275 °F
- In a fan oven120 °C
- As a gas mark1
Brownies with ganache
Recipe from Omer Yaskil, from his Instagram reel. Bakes at 180 °C.
- In Fahrenheit350 °F
- In a fan oven160 °C
- As a gas mark4
Recipes from videos often skip the dial.
When a creator says or shows the temperature and time anywhere in the caption, description or voiceover, ReelsMeals writes them on the recipe card.
Try one reelBrowse recipesCommon questions
What is 180 °C in Fahrenheit?
180 °C is 350 °F, or gas mark 4. In a fan or convection oven, set it to 160 °C instead: the fan moves hot air across the food, so it cooks as though the oven were 20 °C hotter than the dial says.
Do I need to lower the temperature for a fan oven?
Yes, for almost everything. A fan oven at the recipe’s temperature browns the outside before the middle is done. The rule is to drop 20 °C (about 25 °F) from any conventional temperature. The exceptions are things you want dried or crisp, like roast potatoes and some pizzas, where cooks often keep the fan temperature high on purpose.
Why isn’t the gas mark scale linear?
Gas marks came from the burner settings on British gas ovens, not from a temperature formula. Marks 1 to 9 step up in about 25 °F, but the fractional marks below 1 (¼ and ½) were added later for slow cooking and break the pattern. That’s why a gas mark has to be looked up on a chart rather than calculated.
How accurate is my oven’s dial?
Usually less accurate than you’d like. Home ovens often run 10–20 °C off their setting, and they swing above and below it as the thermostat cycles. If your bakes are always over or under at the right temperature, a cheap oven thermometer will show you the offset in one session.
Does this converter work for air fryers?
Not on its own: an air fryer needs a temperature and a time change. The air fryer converter does both, with the 20 °C drop and about 20% less time.
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