Oven temperature converter

Quick answer

To convert oven temperatures: 180°C equals 350°F (gas mark 4), 200°C is 400°F (gas 6), and 220°C is 425°F (gas 7). For a fan oven, set it about 20°C lower than the conventional Celsius temperature.

Oven temperature conversion chart

Oven temperature conversion
Gas mark Fahrenheit Celsius Fan / convection Description
¼ 225°F 110°C 90°C Very cool
½ 250°F 120°C 100°C Very cool
1 275°F 140°C 120°C Cool
2 300°F 150°C 130°C Cool
3 325°F 170°C 150°C Warm
4 350°F 180°C 160°C Moderate
5 375°F 190°C 170°C Moderately hot
6 400°F 200°C 180°C Fairly hot
7 425°F 220°C 200°C Hot
8 450°F 230°C 210°C Very hot
9 475°F 240°C 220°C Very hot

For a fan (convection) oven, set it about 20°C lower than the conventional Celsius temperature.

This oven temperature converter turns Celsius, Fahrenheit, gas mark and fan settings into each other instantly. As a result, you can follow any recipe with confidence, whatever oven you own.

In summary: To convert oven temperature, enter a value and choose the scale. For example, 180 °C equals 356 °F and gas mark 4. For a fan oven, reduce the temperature by about 20 °C.

How to use the oven temperature converter

  1. Enter the temperature from your recipe.
  2. Choose whether it is Celsius, Fahrenheit or gas mark.
  3. See every equivalent, including the fan-oven setting.

Oven temperature conversion chart

Celsius Fahrenheit Gas mark
140 °C 275 °F 1
160 °C 320 °F 3
180 °C 356 °F 4
200 °C 392 °F 6
220 °C 428 °F 7

Fan ovens and this oven temperature converter

Fan ovens cook hotter, so most recipes suggest reducing the temperature by 20 °C. Therefore this oven temperature converter shows the fan setting automatically, which helps prevent over-baking.

Frequently asked questions

What is 180 °C in Fahrenheit? It is 356 °F, or gas mark 4.

How do I adjust for a fan oven? Lower the temperature by about 20 °C.

What is gas mark 6 in Celsius? Gas mark 6 is about 200 °C.

Related tools: Celsius to Fahrenheit Converter, Baking Pan Converter.

Written by Norman

Norman is a full-stack software engineer who builds precise digital tools for real-world kitchen challenges, born from his own struggles converting US recipes to metric mid-bake. When he's not debugging code, he's perfecting sourdough and pastry recipes, turning measurement frustration into foolproof, data-driven baking success.