Cooking Temperature Converter
Instantly convert oven temperatures between Celsius, Fahrenheit, and Gas Mark. Perfect for following recipes from anywhere in the world.
Convert Oven Temperature
Enter your oven temperature and select the unit below to instantly see the equivalent readings across Celsius, Fahrenheit, and Gas Mark, along with a heat-level description.
Temperature Converter
Get instant conversions and an oven heat-level guide.
Understanding Oven Temperatures
Key concepts for reliable results in any kitchen
Celsius vs. Fahrenheit
Most of the world bakes in Celsius, while the US primarily uses Fahrenheit. The two scales share no common zero point, so a simple formula is needed to convert between them.
Gas Mark Explained
Gas Mark is a numbered scale (¼ to 9) traditionally used on British gas ovens, where each mark corresponds to a specific Celsius and Fahrenheit temperature.
Conventional vs. Fan Ovens
A fan oven circulates air for more even, faster cooking. Recipes usually state a conventional temperature, so fan ovens typically need roughly 20°C less.
Preheating Matters
Always preheat to the full target temperature before adding food. A cold or partially heated oven throws off both cooking time and texture.
Oven Temperature Chart
A standard reference for Celsius, Fahrenheit, and Gas Mark equivalents, along with common heat-level descriptions used in recipes.
| Gas Mark | Celsius (°C) | Fahrenheit (°F) | Heat Description |
|---|---|---|---|
| 110 | 225 | Very Cool / Very Slow | |
| 120 | 250 | Very Cool / Very Slow | |
| 140 | 275 | Cool / Slow | |
| 150 | 300 | Cool / Slow | |
| 160 | 325 | Warm / Moderately Low | |
| 180 | 350 | Moderate | |
| 190 | 375 | Moderately Hot | |
| 200 | 400 | Fairly Hot | |
| 220 | 425 | Hot | |
| 230 | 450 | Very Hot | |
| 240 | 475 | Very Hot |
Cooking Temperature FAQ
Answers to the most frequently asked questions about converting and using oven temperatures.
Multiply the Celsius temperature by 9/5 and add 32. For example, 180°C multiplied by 9/5 is 324, plus 32 equals 356°F, which is typically rounded to 350°F on a recipe or oven dial. This calculator handles the conversion automatically.
180°C is approximately Gas Mark 4, which is also equivalent to about 350°F. This is one of the most common baking temperatures used in British recipes for cakes, biscuits, and general roasting.
Yes. Fan and convection ovens circulate hot air, which cooks food faster and more evenly than a conventional oven. As a general rule, reduce the recipe’s stated conventional temperature by around 20°C (or about 20°F) when using a fan setting, or reduce the cooking time slightly instead.
The United States primarily uses Fahrenheit for cooking, while the UK and most of the world use Celsius, with Gas Mark also appearing on older British gas ovens. This mix of scales is why converting between them is often necessary when following international recipes.
Gas Mark settings are broadly standardised, but individual ovens can run slightly hot or cool compared to their dial. If your bakes consistently over- or under-cook at the stated mark, it’s worth checking the actual temperature with an oven thermometer and adjusting accordingly.