Convert gas mark to celsius instantly. Enter a value below, or use the formula and reference table further down the page.
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How to convert gas mark to celsius
Multiply by 14, then add 121.
°C = (gas mark × 14) + 121Example: 10 gas mark = 261 °C.
Gas Mark to Celsius conversion table
| Gas Mark (gas mark) | Celsius (°C) |
|---|---|
| 1 gas mark | 135 °C |
| 2 gas mark | 149 °C |
| 3 gas mark | 163 °C |
| 4 gas mark | 177 °C |
| 5 gas mark | 191 °C |
| 10 gas mark | 261 °C |
| 15 gas mark | 331 °C |
| 20 gas mark | 401 °C |
| 25 gas mark | 471 °C |
| 50 gas mark | 821 °C |
| 100 gas mark | 1521 °C |
Frequently asked questions
How many celsius is 1 gas mark?
1 gas mark equals 135 celsius.
What is the formula to convert gas mark to °C?
To convert gas mark to °C, multiply by 14 and add 121. The full formula is: °C = (gas mark × 14) + 121.
How do I convert celsius back to gas mark?
Use the same calculator above and type your value into the celsius field instead — it converts in both directions. Or use the reverse formula: gas mark = (°C − 121) ÷ 14.
Is the gas mark to °C conversion exact?
The conversion factor used here (14) is the standard internationally defined value. Results on this page are rounded to four decimal places for readability.