Cooking & Kitchen

Oven Temperature Converter

Q: What is gas mark 4 in °C and °F?

Gas mark 4 is 180°C or 350°F, the standard moderate oven used in many recipes.

Q: How do I convert Celsius to Fahrenheit?

Multiply the Celsius figure by 9/5 and add 32. For example 180°C becomes 356°F, usually rounded to 350°F.

Q: Should I lower the temperature for a fan oven?

Yes, a fan oven cooks hotter, so set it about 20°C lower than a conventional oven for the same result.

Recipe in the wrong units? Convert any oven temperature between Celsius, Fahrenheit, gas mark, and fan in one tap.

Temperature

Given as

That's—

Celsius (conventional)

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Fahrenheit

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Gas mark

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Fan / convection °C

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Converting oven temperatures

Recipes come from all over, so the same heat gets written four different ways: Celsius, Fahrenheit, UK gas marks, and fan (convection) settings. Celsius to Fahrenheit is (°C × 9/5) + 32. Gas marks follow a set scale — gas mark 4 is 180°C (350°F), the classic "moderate oven". And a fan oven runs hotter for the same dial, so the rule is to set a fan oven about 20°C lower than a conventional one to get the same result.

Type a temperature, pick what unit it's given in, and this converter shows all four at once — including the fan-oven equivalent so your bake doesn't overcook.

Common oven temperatures

Gas 2 = 150°C = 300°F (slow) · Gas 4 = 180°C = 350°F (moderate)
Gas 6 = 200°C = 400°F (moderately hot) · Gas 7 = 220°C = 425°F (hot)
For a fan oven, set about 20°C lower than the conventional Celsius figure.

Frequently asked questions

What is gas mark 4 in °C and °F?

Gas mark 4 is 180°C or 350°F — the standard "moderate oven" used in a huge number of recipes.

How do I convert Celsius to Fahrenheit?

Multiply the Celsius figure by 9/5 and add 32. For example, 180°C × 9/5 + 32 = 356°F (usually rounded to 350°F).

Should I lower the temperature for a fan oven?

Yes — a fan (convection) oven cooks hotter, so set it about 20°C lower than a conventional oven for the same result.