Where do these numbers come from?
- NISTSP 811 exact unit definitions (1 in = 25.4 mm, 1 lb = 453.59237 g)current edition
- NISTHandbook 44, weights and measurescurrent edition
- King Arthur BakingIngredient Weight Chart (kitchen tools)retrieved Oct 23, 2026
Checked Oct 23, 2026. °F = °C × 9/5 + 32, so 180 °C = 356 °F; ovens usually round this to 350 °F.
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240 °C = 464 °F
Worked example
240 × 9/5 = 432; 432 + 32 = 464 °F.
This is an oven temperature, close to gas mark 9 (475 °F). For a fan (convection) oven, recipes usually reduce by about 20 °C, to roughly 220 °C.
Nearby values
| Celsius | Fahrenheit |
|---|---|
| 230 °C | 446 °F |
| 232 °C | 449.6 °F |
| 234 °C | 453.2 °F |
| 236 °C | 456.8 °F |
| 238 °C | 460.4 °F |
| 240 °C | 464 °F |
| 242 °C | 467.6 °F |
| 244 °C | 471.2 °F |
| 246 °C | 474.8 °F |
| 248 °C | 478.4 °F |
| 250 °C | 482 °F |
Related
Frequently asked questions
What is 240 °C in Fahrenheit?
464 °F.
Is 240 °C hot or cold?
This is an oven temperature, close to gas mark 9 (475 °F). For a fan (convection) oven, recipes usually reduce by about 20 °C, to roughly 220 °C.