Oven Temperature Converter
Convert between Celsius, Fahrenheit, Gas Mark and Fan Oven temperatures. Reference table of common cooking temperatures included
Common Cooking Temperatures
| Temperature Level | Celsius | Fahrenheit | Gas Mark |
|---|---|---|---|
| Very cool | 110°C | 225°F | ¼ |
| Cool | 140°C | 275°F | 1 |
| Moderate | 160°C | 325°F | 3 |
| Moderately hot | 190°C | 375°F | 5 |
| Hot | 200°C | 400°F | 6 |
| Very hot | 220°C | 425°F | 7 |
| Extremely hot | 240°C | 475°F | 9 |
Note: Fan ovens are typically 20°C cooler than conventional ovens, so recipes may cook faster. Gas marks are calculated using the approximate formula and may vary slightly between different ovens.
Oven Temperature Across Systems
Three oven temperature systems: °F (American), °C (most international), and Gas Mark (older British). Conversion formulas: °C = (°F - 32) × 5/9. Gas Mark to °C: each Mark step is roughly 10-25 °C. Most modern UK ovens display °C; older models still show Gas Marks. American ovens display °F.
Common cooking ranges: 'low' = 130-150 °C / 250-300 °F / Gas 1-2; 'moderate' = 160-180 °C / 325-350 °F / Gas 3-4; 'moderately hot' = 190-200 °C / 375-400 °F / Gas 5-6; 'hot' = 220-230 °C / 425-450 °F / Gas 7-8; 'very hot' = 240+ °C / 475+ °F / Gas 9+. Bread baking: typically 220-230 °C / 425-450 °F / Gas 7-8.
Oven Temperature Reference
| °F | °C | Gas Mark | Description |
|---|---|---|---|
| 225 °F | 110 °C | 1/4 | Slow |
| 275 °F | 140 °C | 1 | Cool |
| 325 °F | 170 °C | 3 | Moderate |
| 350 °F | 180 °C | 4 | Moderate |
| 375 °F | 190 °C | 5 | Moderately hot |
| 400 °F | 200 °C | 6 | Hot |
| 425 °F | 220 °C | 7 | Very hot |
| 450 °F | 230 °C | 8 | Very hot |
Frequently Asked Questions
Should I reduce temperature for fan oven?
Yes - reduce by 20 °C (or 1 Gas Mark) from the recipe's stated temperature. A recipe for 200 °C in a conventional oven becomes 180 °C in a fan/convection oven. Fan ovens cook faster too - reduce time by 5-10 minutes for longer recipes.
Why doesn't my baking turn out at the recipe temperature?
Oven calibration drift. Many home ovens are 10-30 °F off from their displayed temperature. Get an oven thermometer (£10) to check. Recalibrate by adjusting recipe temperature up or down by the offset, or have the oven's thermostat re-tuned by a service technician.
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