Oven Temperature Conversion: Fahrenheit, Celsius and Gas Mark

American recipes give oven temperatures in Fahrenheit, European and Australian ones in Celsius, and older British recipes in gas marks. Here is how they line up, with the adjustment for fan ovens.

Oven temperature chart

The temperatures recipes use, as they are usually printed. The fan column is 20°C lower.

Exact conversions for common temperatures

Charts round to the nearest 10 degrees. The exact figures:

The formulas

To turn Fahrenheit into Celsius, subtract 32 and multiply by 5/9: (400 − 32) × 5/9 = 204°C. To turn Celsius into Fahrenheit, multiply by 9/5 and add 32: 200 × 9/5 + 32 = 392°F.

Fan and convection ovens

A fan moves hot air around the food, so it cooks faster and browns more. Unless the recipe was written for a fan oven, lower the temperature by about 20°C (25°F), or keep it and start checking 10 minutes early. Some ovens make the adjustment for you; your manual will say.

When your oven runs hot or cold

Many home ovens sit 10 to 25 degrees away from the dial. An inexpensive oven thermometer on the middle rack shows the real temperature; set the dial to match. Let the oven preheat fully, usually 15 to 20 minutes, before baking.

Oven temperature FAQ

What is 350°F in Celsius?

177°C. Most recipes round it to 180°C, or 160°C for a fan oven.

What is 180°C in Fahrenheit?

356°F. American recipes use 350°F for the same setting.

What gas mark is 200°C?

Gas mark 6, which is 400°F.

Is 180°C fan the same as 200°C conventional?

Roughly, yes: a fan oven at 180°C cooks about like a conventional oven at 200°C.

What is 400°F in Celsius?

204°C, usually written as 200°C.

Converting the ingredients too? Use the cups to grams converter and the butter calculator.