Celsius to Fahrenheit
240°C to Fahrenheit
240°C is 464°F (Gas Mark 9). In a fan oven, use 220°C.
240 degrees Celsius equals
464°F
Nearest US oven setting: 475°F
What 240°C is used for
Very hot oven
240°C is Gas Mark 9, the top of the standard gas scale. It is 464°F. UK charts pair Gas Mark 9 with both 240°C and 475°F, although 475°F is strictly 246°C.
Typical uses at this heat: pizza, flatbreads, crusty bread.
Not sure your oven really reaches 240°C? Many ovens run hotter or cooler than the dial. See how to check your oven’s temperature.
How to convert 240°C to °F
Multiply by 9, divide by 5, then add 32:
432 + 32 = 464°F
The quick “double it and add 30” trick gives 510°F, which is 46°F too high at this temperature. That’s fine for weather but not for baking, so use the exact figure.
240°C in different ovens
| Oven type | Setting |
|---|---|
| Conventional (top and bottom heat) | 240°C / 464°F |
| Fan oven | 220°C |
| US convection oven | 440°F |
| Gas oven | Gas Mark 9 |
| Air fryer | 225°C / 440°F |
Convert another temperature
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Nearby temperatures
| Celsius | Fahrenheit | Gas Mark | Fan oven |
|---|---|---|---|
| 200°C | 392°F | Gas Mark 6 | 180°C |
| 210°C | 410°F | Between 6 and 7 | 190°C |
| 220°C | 428°F | Gas Mark 7 | 200°C |
| 230°C | 446°F | Gas Mark 8 | 210°C |
| 240°C | 464°F | Gas Mark 9 | 220°C |
| 250°C | 482°F | Above 9 | 230°C |
| 260°C | 500°F | Above 9 | 240°C |
| 270°C | 518°F | Above 9 | 250°C |
| 280°C | 536°F | Above 9 | 260°C |
Common questions
What is 240°C in Fahrenheit?
240°C is 464°F. On a US oven dial, use 475°F.
What Gas Mark is 240°C?
240°C is Gas Mark 9.
What is 240°C in a fan oven?
Use 220°C in a fan oven. Fan ovens circulate hot air, so UK recipes reduce the conventional temperature by 20°C. If your recipe already says “240°C fan”, don’t reduce it again.
Is 240°C hot?
240°C counts as a very hot oven. Typical uses: pizza, flatbreads, crusty bread.
More Celsius conversions
Going the other way? See 350°F to °C and the other Fahrenheit conversions.