Fan oven temperature converter
For a fan oven, set the temperature about 20 °C lower than for a conventional oven: 180 °C becomes 160 °C fan. Gas mark 4 is 180 °C, and 350 °F is about 180 °C.
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For a fan oven, set the temperature about 20 °C lower than for a conventional oven: 180 °C becomes 160 °C fan. Gas mark 4 is 180 °C, and 350 °F is about 180 °C.
For a fan oven, set the temperature about 20 °C lower than for a conventional oven: 180 °C becomes 160 °C fan. Gas mark 4 is 180 °C, and 350 °F is about 180 °C.
160 °C fan
instead of 180 °C conventional
Some ovens need 20 to 30 °C less. If your oven’s manual says otherwise, follow the manual.
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Conventional, fan, Fahrenheit and the nearest gas mark.
| Conventional | Fan | Fahrenheit | Gas mark |
|---|---|---|---|
| 140 °C | 120 °C | 284 °F | Gas 1 |
| 150 °C | 130 °C | 302 °F | Gas 2 |
| 160 °C | 140 °C | 320 °F | Gas 3 |
| 170 °C | 150 °C | 338 °F | Gas 4 |
| 180 °C | 160 °C | 356 °F | Gas 4 |
| 190 °C | 170 °C | 374 °F | Gas 5 |
| 200 °C | 180 °C | 392 °F | Gas 6 |
| 210 °C | 190 °C | 410 °F | Gas 6 |
| 220 °C | 200 °C | 428 °F | Gas 7 |
| 230 °C | 210 °C | 446 °F | Gas 8 |
| 240 °C | 220 °C | 464 °F | Gas 9 |
| 250 °C | 230 °C | 482 °F | Gas 9 |
For US recipes, rounded to 10 °C.
| Fahrenheit | Conventional | Fan |
|---|---|---|
| 250 °F | 120 °C | 100 °C |
| 275 °F | 140 °C | 120 °C |
| 300 °F | 150 °C | 130 °C |
| 325 °F | 160 °C | 140 °C |
| 350 °F | 180 °C | 160 °C |
| 375 °F | 190 °C | 170 °C |
| 400 °F | 200 °C | 180 °C |
| 425 °F | 220 °C | 200 °C |
| 450 °F | 230 °C | 210 °C |
| Gas mark | Conventional | Fan | Fahrenheit |
|---|---|---|---|
| Gas ¼ | 110 °C | 90 °C | 225 °F |
| Gas ½ | 120 °C | 100 °C | 250 °F |
| Gas 1 | 140 °C | 120 °C | 275 °F |
| Gas 2 | 150 °C | 130 °C | 300 °F |
| Gas 3 | 160 °C | 140 °C | 325 °F |
| Gas 4 | 180 °C | 160 °C | 350 °F |
| Gas 5 | 190 °C | 170 °C | 375 °F |
| Gas 6 | 200 °C | 180 °C | 400 °F |
| Gas 7 | 220 °C | 200 °C | 425 °F |
| Gas 8 | 230 °C | 210 °C | 450 °F |
| Gas 9 | 240 °C | 220 °C | 475 °F |
Source: Which?, 2026
Example: A recipe says 180 °C conventional, and your oven has a fan:
160 °C. For a fan oven, set the temperature about 20 °C lower.
180 °C fan. The other way round, 180 °C fan is about 200 °C conventional.
180 °C conventional or 160 °C fan, which is 350 °F.
About 180 °C conventional, or 160 °C fan. Exactly, it is 176.7 °C.
Many give both, such as “180 °C (160 °C fan)”. If there is only one temperature, Which? says it usually already means a fan oven.
For sponges, cheesecake, soufflés and tall cakes. A fan dries out a thin sponge so it cracks when you roll it (Dr. Oetker).