Free kitchen tool
Oven Temperature Converter
Convert between °C, °F and Gas Mark as you type, with the fan oven, US convection and air fryer settings shown too.
Enter a temperature in any box.
Oven temperature chart
Tap a gas mark to load it into the converter. Printable version
| Gas Mark | °C | Fan °C | °F |
|---|---|---|---|
| 110°C | 90°C | 225°F | |
| 120°C | 100°C | 250°F | |
| 140°C | 120°C | 275°F | |
| 150°C | 130°C | 300°F | |
| 160°C | 140°C | 325°F | |
| 180°C | 160°C | 350°F | |
| 190°C | 170°C | 375°F | |
| 200°C | 180°C | 400°F | |
| 220°C | 200°C | 425°F | |
| 230°C | 210°C | 450°F | |
| 240°C | 220°C | 475°F |
Popular conversions
Celsius to Fahrenheit
Fahrenheit to Celsius
Gas Mark
Guides
How this converter works
Celsius and Fahrenheit are converted exactly (°F = °C × 9 ÷ 5 + 32), then shown alongside the nearest setting you’ll actually find on an oven dial. US dials go up in 25°F steps and UK dials in 10°C steps. Gas marks use the standard UK scale, so a temperature between two marks is shown as “between”, not forced onto one.
Fan settings use the UK rule of 20°C lower. US convection settings use the US rule of 25°F lower. Air fryer settings are a starting point: about 15°C (25°F) lower and roughly 20% less time. More about our sources.
Common questions
How do I convert Celsius to Fahrenheit?
Multiply by 9, divide by 5 and add 32. For example, 180°C × 9 ÷ 5 = 324, and 324 + 32 = 356°F. Oven dials in the US go up in 25°F steps, so a 180°C recipe is usually baked at 350°F.
How do I convert Fahrenheit to Celsius?
Subtract 32, multiply by 5 and divide by 9. For example, 350°F − 32 = 318, and 318 × 5 ÷ 9 = 176.7°C. UK recipes round that to 180°C.
What is Gas Mark?
Gas Mark is the temperature scale on British and Irish gas ovens. From Gas Mark 1 (275°F, about 140°C) upwards, each mark is 25°F hotter, up to Gas Mark 9 (475°F, about 240°C). Gas Mark ¼ and ½ are cooler settings below Gas Mark 1.
How much lower should a fan oven be?
UK recipes reduce the conventional temperature by 20°C for a fan oven, so 180°C becomes 160°C fan. US convection guidance is to reduce by 25°F. If a recipe already gives a fan temperature, use it as written.
Is 200°C the same as 400°F?
Nearly. 200°C is 392°F, and 400°F is 204°C. Recipes treat them as the same setting, and the difference is smaller than most ovens’ own error.
What temperature is a moderate oven?
A moderate oven is about 180°C, 350°F or Gas Mark 4. Older recipes may say “moderate” for anything from about 160°C to 190°C.