Recipes from different countries quote oven temperatures in Celsius, Fahrenheit or UK gas marks, which makes following them awkward. This converter shows all three side by side: enter a temperature in any one unit and the equivalents update instantly, with a reminder to drop fan-oven settings by about 20 °C.
How it works
Celsius and Fahrenheit convert with the exact formulas °F = °C × 1.8 + 32 and °C = (°F − 32) ÷ 1.8. Gas mark is not a linear scale, so it uses the standard UK reference table — when you enter a Celsius or Fahrenheit value, the tool picks the closest gas mark by temperature; when you pick a gas mark, it reads off its fixed Celsius value and converts to Fahrenheit.
Example
Enter 180 °C:
- Fahrenheit = 180 × 1.8 + 32 = 356 °F (commonly written 350 °F)
- Closest gas mark = 4
- For a fan oven, set roughly 160 °C instead
| Gas mark | Celsius | Fahrenheit |
|---|---|---|
| 1/4 | 110 °C | 230 °F |
| 2 | 150 °C | 300 °F |
| 4 | 180 °C | 350 °F |
| 6 | 200 °C | 400 °F |
| 7 | 220 °C | 425 °F |
| 9 | 240 °C | 465 °F |
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