°F, °C and gas mark, with the fan (convection) oven setting.
How the Oven Temperature Conversion works
Type an oven temperature in °F, °C or gas mark and see the others, the setting to use on a °C dial (in steps of 10 °C) and the usual setting for a fan (convection) oven.
°C = (°F − 32) × 5/9 and °F = °C × 9/5 + 32. Gas mark n is 250 + 25n °F (gas 4 = 350 °F); gas 1/2 is 250 °F and gas 1/4 is 225 °F.
Example: 350 °F = 176.7 °C, which is 180 °C on the dial and gas mark 4. For a fan oven, recipes usually say 25 °F lower (325 °F) or 20 °C lower (160 °C).
Frequently asked questions
What is 350 °F in Celsius?
176.7 °C, set as 180 °C on the dial (gas mark 4).
What is 180 °C in Fahrenheit?
356 °F; recipes round it to 350 °F (gas mark 4).
How much lower should a fan or convection oven be?
Usually 25 °F (US recipes) or 20 °C (UK recipes) lower than the recipe says, or the same temperature for a shorter time. Check the oven’s manual: some ovens lower it automatically.
What is gas mark 6?
400 °F, which is 204.4 °C, set as 200 °C on the dial.