Fahrenheit to gas mark converter
Enter the Fahrenheit temperature from the recipe to get the nearest gas mark and the matching Celsius value.
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How to use it
- Enter oven temperature.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
°C = (°F − 32) × 5/9. From mark 1 up, gas mark = (°F − 250) ÷ 25; 250 °F = 1/2 and 225 °F = 1/4. The nearest mark is chosen.
Example
Inputs: Oven temperature = 425 °F. Result: Nearest gas mark: 7; Temperature in Celsius: 218.3 °C; Temperature of that mark: 425 °F.
Limits and caveats
- The scale only runs from gas mark 1/4 to 10, about 212 to 512 °F.
- Oven dials vary in accuracy, so watch the first bake.
Questions about this tool
What gas mark is 350 °F?
Exactly gas mark 4, which is 176.7 °C; most cooks write it as 180 °C.
What is 400 °F in Celsius?
204.4 °C, which is gas mark 6.
Are all gas mark steps equal?
From 1 to 10, yes: each step is 25 °F, about 13.9 °C. Marks 1/4 and 1/2 are 225 and 250 °F.