Oven temperature conversion
350°F is 176.7°C, which recipes and oven dials round to 180°C; going the other way, 180°C is 356°F, so set a Fahrenheit oven to 350°F.
The formulas are °C = (°F − 32) × 5 ÷ 9 and °F = °C × 9 ÷ 5 + 32. Recipes round the result to the nearest 10 degrees, because a home oven swings above and below its set point as the element cycles on and off anyway.
Converter
Recipes round this to 180°C (160°C fan), gas mark 4.
| °F | °C (exact) | °C (rounded) | °C fan | Gas mark |
|---|---|---|---|---|
| 225°F | 107.2°C | 110°C | 90°C | ¼ |
| 250°F | 121.1°C | 120°C | 100°C | ½ |
| 275°F | 135°C | 140°C | 120°C | 1 |
| 300°F | 148.9°C | 150°C | 130°C | 2 |
| 325°F | 162.8°C | 160°C | 140°C | 3 |
| 350°F | 176.7°C | 180°C | 160°C | 4 |
| 375°F | 190.6°C | 190°C | 170°C | 5 |
| 400°F | 204.4°C | 200°C | 180°C | 6 |
| 425°F | 218.3°C | 220°C | 200°C | 7 |
| 450°F | 232.2°C | 230°C | 210°C | 8 |
| 475°F | 246.1°C | 250°C | 230°C | 9 |
Calculated with °C = (°F − 32) × 5 ÷ 9; gas marks follow the standard UK scale.
Fan and convection ovens
Most recipes are written for a conventional oven. With the fan on, heat reaches the food faster, so the usual advice is to set the oven about 20°C (25°F) lower, or keep the temperature and check for doneness earlier. British recipes often print both, as in “180°C (160°C fan)”. Some newer ovens adjust for the fan automatically, so check the manual before subtracting twice.
Gas marks
Gas marks run from ¼ to 9 on British gas ovens. From mark 1 up, each step adds 25°F, about 14°C: gas mark 4 is 350°F, roughly 180°C, a common setting for cakes and cookies.
When the conversion isn't the problem
If bakes come out pale or scorched even at the right setting, the oven itself may run hot or cold. An inexpensive oven thermometer on the middle rack will tell you how far off it is, and you can set the dial to compensate.
For cups, spoons and grams, the kitchen conversions hub has the rest.
ReelMeal's Units setting converts oven temperatures in the steps of any recipe you import: Metric shows °C, Imperial shows °F, rounded to the degree (350°F reads as 177°C).
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What is 350°F in Celsius?
176.7°C. Use 180°C, or 160°C in a fan oven.
What is 180°C in Fahrenheit?
356°F. Set the oven to 350°F, the nearest standard setting.
What is 400°F in Celsius?
204.4°C, which recipes give as 200°C (180°C fan).
What is 200°C in Fahrenheit?
392°F. Set the oven to 400°F.
What gas mark is 180°C?
Gas mark 4, which is 350°F.