240°C to Fahrenheit — all four oven scales
The exact conversion is °C × 9/5 + 32, so 240°C works out to 464°F. 240°C sits between the standard recipe settings rather than on one — there's no published pairing for it. An American oven with a 25°F dial gets closest at 475°F; a digital oven can take 464°F directly. Either is well inside the swing a home oven produces on its own.
In a fan (convection) oven, use 220°C — the standard adjustment is conventional minus 20°C, because moving air transfers heat faster than still air. Make the temperature adjustment or shorten the bake time by about a quarter, never both. Bake times are otherwise unaffected by converting between scales: 240°C and 475°F are the same heat wearing different units.
Where 240°C sits on the chart
| °F | °C | Fan °C | Gas mark | Descriptor |
|---|---|---|---|---|
| 375°F | 190°C | 170°C | 5 | Moderately hot |
| 400°F | 200°C | 180°C | 6 | Moderately hot |
| 425°F | 220°C | 200°C | 7 | Hot |
| 450°F | 230°C | 210°C | 8 | Hot |
| 475°F | 245°C | 225°C | 9 | Very hot |
See the full chart on the oven temperature converter →
What bakes at this temperature
475°F / 240°C is the territory of pizza and lean, crusty loaves. Remember that most home ovens swing ±25°F around their set point and many run permanently hot or cold — a standalone oven thermometer on the middle rack tells you more than any conversion chart can.