Gas Mark Converter
Convert UK gas mark oven temperatures to Celsius and Fahrenheit for accurate cooking and baking from 1/4 to 9
🔥 Oven Temperature Tips
- • Always preheat your oven for 10-15 minutes before cooking
- • Use an oven thermometer to verify actual temperature
- • Gas marks 1-2: Very slow cooking, casseroles, dried fruits
- • Gas marks 3-4: Most baking, cakes, cookies, pastries
- • Gas marks 5-6: Roasting vegetables, poultry, meat
- • Gas marks 7-9: Fast cooking, grilling effects, crispy foods
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Complete Guide: Gas Mark Converter
Everything you need to know about using this tool effectively
The Gas Mark Converter transforms Gas Mark oven settings (used primarily in the UK and Ireland) to Celsius and Fahrenheit temperatures. Gas Mark is a numeric scale from 1 to 10 used on gas ovens. You enter a Gas Mark number and the tool shows the equivalent temperature in both Celsius and Fahrenheit. A reference chart shows all Gas Mark settings. All processing happens in the browser.
This tool uses a lookup table mapping Gas Mark numbers to their corresponding temperatures. Gas Mark 1 is 140°C (275°F), Gas Mark 4 is 180°C (350°F), and so on through Gas Mark 10 at 290°C (550°F). The tool also converts in reverse, from Celsius or Fahrenheit to the nearest Gas Mark.
Following UK recipes in a non-UK oven
Convert Gas Mark 6 to 200°C (400°F) when using a metric or US oven.
Converting old British recipes
Translate Gas Mark settings from a vintage recipe book to modern oven temperatures.
Setting a gas oven from a Celsius recipe
Convert 180°C to Gas Mark 4 when cooking on a UK gas oven.
Learning UK cooking terminology
Understand what Gas Mark settings mean for international cooking courses.
Enter a Gas Mark number
Type the Gas Mark value (1-10, including halves).
View the temperature
The tool shows the Celsius and Fahrenheit equivalents.
Or enter a temperature
Type a Celsius or Fahrenheit value to find the nearest Gas Mark.
Copy the result
Copy the temperature you need.
Gas Mark 4 (180°C / 350°F) is the most common setting for baking.
Gas Mark 1 (140°C / 275°F) is a very low setting for slow cooking.
Gas Mark 9 (240°C / 475°F) is a very hot setting for pizza and roasting.
Half Gas Marks (e.g., 3.5) are between the standard settings.
What is Gas Mark?
Gas Mark is a temperature scale used on UK and Irish gas ovens. It runs from 1 (cool, 140°C) to 10 (very hot, 290°C). It provides a simple numeric way to set oven temperature without needing exact degree values.
Can I convert from Celsius to Gas Mark?
Yes. Enter a Celsius or Fahrenheit temperature and the tool finds the nearest Gas Mark setting.
Is my data sent to a server?
No. All conversion happens in your browser. Nothing is transmitted.
What is the most common Gas Mark?
Gas Mark 4 (180°C / 350°F) is the most commonly used setting for general baking and roasting.
Does it support half Gas Marks?
Yes. You can enter values like 3.5 or 6.5 for settings between the standard numbers.