Oven Temperature Converter: °C, °F, Gas Mark
Convert oven temperatures between Celsius, Fahrenheit, fan ovens and gas marks.
Good to know. Most home ovens run 10 to 20 degrees off what the dial says. An oven thermometer settles it.
How it works
In plain words
Multiply °C by 9, divide by 5 and add 32 for °F. Take 32 from °F, multiply by 5 and divide by 9 for °C. For a fan oven, use 20 °C less than a conventional oven. Gas marks follow the chart.
The formula
°F = °C × 9 ÷ 5 + 32 °C = (°F − 32) × 5 ÷ 9 fan °C = conventional °C − 20
Worked example
180 °C × 9 ÷ 5 + 32 = 356 °F. Recipes round it to 350 °F, gas mark 4, or 160 °C in a fan oven.
Sources
No outside data or rates: this is plain arithmetic.
5 automated tests check its answers on every change.
About the oven temperature converter: °C, °F, gas mark
Recipes from different countries give oven temperatures in different ways: °C in most of the world, °F in the US, gas marks in older British recipes, and often a separate fan setting. This converter translates between all four and shows the nearest setting on a typical oven dial.
The exact conversion rarely lands on a round number, so recipes round to the nearest 10 °C or 25 °F. 180 °C is 356 °F, but an American version of the recipe will say 350 °F; 200 °C is 392 °F, written as 400 °F. The difference is smaller than the error of most ovens.
Fan ovens, also called convection ovens, blow hot air around the food and cook faster, so use about 20 °C (25 °F) less than a conventional recipe says, or keep the temperature and check the food earlier. Many modern recipes give both. If a recipe doesn’t say, assume it means a conventional oven.
Gas marks run from ¼ (very cool, about 110 °C) to 9 (very hot, about 240 °C). Gas mark 4, 180 °C or 350 °F, is the everyday baking temperature for cakes and biscuits.
Questions people ask
What is 180 °C in Fahrenheit?
356 °F exactly. Recipes round it to 350 °F, which is gas mark 4.
What is 350 °F in Celsius?
176.7 °C, usually written as 180 °C, or 160 °C in a fan oven.
How do I convert a recipe for a fan oven?
Lower the temperature by about 20 °C (25 °F), and check a little before the stated time.
What temperature is gas mark 6?
200 °C, 400 °F, or 180 °C in a fan oven.