Oven Temperature Converter
Convert oven temperatures between Fahrenheit, Celsius and UK gas marks in one step.
Celsius176.7°C
Fan / convection (≈ −20°C)157°C
Approx. gas mark4
Celsius = (°F − 32) × 5⁄9. A moderate 350°F oven is (350 − 32) × 5⁄9 = 176.7°C, usually rounded to 180°C. A fan (convection) oven runs about 20°C cooler than a conventional one for the same result. On the British gas-mark scale each mark is about 25°F apart, so gas mark ≈ (°F − 250) ÷ 25 — gas mark 4 is 350°F (180°C), a standard moderate oven. The gas-mark figure is rounded to the nearest whole mark.
Questions
What is 350°F in Celsius?
350°F equals (350 − 32) × 5⁄9 = 176.7°C, which is normally rounded to 180°C in recipes. That is gas mark 4, a moderate oven.
How do I adjust for a fan oven?
A fan (convection) oven cooks faster, so drop the conventional temperature by about 20°C — for example 180°C conventional becomes roughly 160°C fan.