Oven Temperature Conversion Chart
Fahrenheit, Celsius, fan (convection) oven and gas mark equivalents for every common baking temperature, with what each one is used for. Recipe conversions are rounded to the nearest 10 °C, as cookbooks do.
| °F | °C | Fan °C | Gas mark | Description | Good for |
|---|---|---|---|---|---|
| 225 °F | 110 °C | 90 °C | ¼ | Very cool | Meringues, drying herbs, slow-smoking |
| 250 °F | 120 °C | 100 °C | ½ | Very cool | Slow-roasting tomatoes, keeping food warm, pavlova |
| 275 °F | 140 °C | 120 °C | 1 | Cool | Slow-cooked stews and braises, custards in a water bath |
| 300 °F | 150 °C | 130 °C | 2 | Cool | Rich fruit cakes, cheesecake, low-and-slow ribs |
| 325 °F | 160 °C | 140 °C | 3 | Moderately slow | Pound cake, roasting large joints slowly, shortbread |
| 350 °F | 180 °C | 160 °C | 4 | Moderate | Most cakes, cookies, brownies, casseroles |
| 375 °F | 190 °C | 170 °C | 5 | Moderately hot | Muffins, quick breads, pies, roast chicken |
| 400 °F | 200 °C | 180 °C | 6 | Hot | Roast vegetables, puff pastry, sheet-pan dinners |
| 425 °F | 220 °C | 200 °C | 7 | Hot | Crispy roast potatoes, bread rolls, pizza at home |
| 450 °F | 230 °C | 210 °C | 8 | Very hot | Crusty bread, finishing roasts, fries in the oven |
| 475 °F | 240 °C | 220 °C | 9 | Very hot | Artisan bread in a Dutch oven, pizza |
| 500 °F | 260 °C | 240 °C | 10 | Extremely hot | Pizza on a stone, searing, broiling |
Fan and convection ovens
A fan (convection) oven blows hot air around the food, so it cooks faster and more evenly. Most recipes are written for conventional ovens: for a fan oven, lower the temperature by about 20 °C (25 °F), or keep the temperature and shorten the time by about a quarter. Check food a few minutes early the first time.
Air fryer conversion
An air fryer is a small, powerful convection oven. To adapt an oven recipe, reduce the temperature by about 25 °F (15 °C) and the time by about 20%, and shake or turn the food halfway. For example, 400 °F for 20 minutes in the oven becomes about 375 °F for 16 minutes in an air fryer.
Gas marks
Gas marks are the oven settings on British gas cookers. Gas mark 1 is 275 °F (140 °C), and each mark above it adds about 25 °F (14 °C). Below 1 the marks go down in halves and quarters. More about gas marks →
Convert exact values: Fahrenheit to Celsius · Celsius to Fahrenheit · gas mark to Celsius · Fahrenheit to gas mark
Cooking and ingredient conversions
Frequently asked questions
How do I convert oven temperatures for a fan (convection) oven?
Lower the temperature by about 20 °C (25 °F) and check the food a little earlier. A recipe at 180 °C in a conventional oven needs about 160 °C fan.
What is 350 °F in Celsius?
350 °F is 176.7 °C, rounded to 180 °C in recipes (or 160 °C in a fan oven). It is gas mark 4.
How do I convert an oven recipe for an air fryer?
Reduce the temperature by about 25 °F (15 °C) and the cooking time by about 20%, and shake or turn the food halfway through.
What is gas mark 6 in Celsius?
Gas mark 6 is 200 °C (400 °F), or about 180 °C in a fan oven.
Why are recipe temperatures rounded?
Oven thermostats are only accurate to about ±10 °C, so cookbooks round conversions to the nearest 10 °C: 350 °F becomes 180 °C rather than 176.7 °C.