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Oven Temperature Converter

Convert oven temperatures between Celsius, Fahrenheit and gas mark, and see the fan oven equivalent at a glance.

Fan ovens cook hotter, so use a temperature about 20 °C lower than for a conventional oven. Check your oven manual, as brands vary.

Conventional oven: 180 °C · 356 °F · Gas Mark 4

Fan oven: 160 °C · 320 °F · Gas Mark 2

Gas mark chart
Gas markConventionalFanFahrenheitHeat
¼110 °C90 °C225 °FVery cool
½120 °C100 °C250 °FVery cool
1140 °C120 °C275 °FCool
2150 °C130 °C300 °FCool
3170 °C150 °C325 °FWarm
4180 °C160 °C350 °FModerate
5190 °C170 °C375 °FModerately hot
6200 °C180 °C400 °FFairly hot
7220 °C200 °C425 °FHot
8230 °C210 °C450 °FVery hot
9240 °C220 °C475 °FVery hot

How the oven temperature converter works

Recipes use Celsius, Fahrenheit or gas mark depending on where they were written. This converter switches between all three and gives the fan oven equivalent, which is usually about 20°C lower than a conventional oven. Ovens vary, so an oven thermometer is the best way to check yours.

Frequently asked questions

What is 180°C in Fahrenheit and gas mark?

180°C is 350°F, or gas mark 4. It is one of the most common baking temperatures.

How do I convert a recipe for a fan oven?

Lower the temperature by about 20°C. For example, 180°C in a conventional oven is around 160°C in a fan oven.

Are gas marks the same as degrees?

No. Gas marks are a numbered scale used on British gas ovens, and each step is roughly 14°C or 25°F. Gas mark 1 is about 140°C (275°F).

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