Convert oven temperatures between Fahrenheit, Celsius, and gas marks quickly.
Perfect for home cooks following recipes from different regions or using older cookbooks.
Get accurate conversions to avoid undercooked or burnt dishes.
🔥 Oven Temperature Converter
Gas marks are approximate, based on UK standard gas oven markings.
How to Use This Tool
Enter the temperature value you have from your recipe or oven manual in the input field. Select the unit of the input temperature (Fahrenheit, Celsius, or Gas Mark) from the dropdown menu. Check the fan oven box if you are using a convection oven to automatically adjust temperatures. Click the Convert Temperature button to see all converted values, or Reset to clear all fields. Use the Copy Results button to save the conversions to your clipboard for quick reference while cooking.
Formula and Logic
Conversions follow standard international oven temperature standards:
- Fahrenheit to Celsius: (°F - 32) × 5/9 = °C
- Celsius to Fahrenheit: (°C × 9/5) + 32 = °F
- Gas Mark conversion uses UK standard gas oven markings, which map to fixed Fahrenheit/Celsius ranges (e.g., Gas Mark 4 = 350°F/175°C).
- Fan oven adjustment reduces temperatures by 25°F (15°C) to account for faster heat circulation in convection ovens.
Practical Notes
Keep these real-world cooking tips in mind when using converted temperatures:
- Gas mark conversions are approximate, as older gas ovens may vary by 10-15°F. Use an oven thermometer for critical bakes like macarons or soufflés.
- Fan oven adjustments are a general guideline; some recipes may specify "fan-assisted" temperatures already, so check your recipe notes first.
- High-altitude cooking may require temperature adjustments beyond unit conversions: reduce baking temperature by 25°F for every 3,000 feet above sea level.
- Always preheat your oven for 10-15 minutes before adding food, regardless of the converted temperature.
Why This Tool Is Useful
Home cooks often encounter recipes from different regions: US recipes use Fahrenheit, European and Asian recipes use Celsius, and older UK recipes use Gas Marks. This tool eliminates guesswork, reducing the risk of overcooked or undercooked dishes. It also saves time flipping between conversion charts, and the fan oven adjustment helps adapt recipes for modern convection ovens common in most homes today.
Frequently Asked Questions
Can I use this for any type of oven?
This tool works for conventional gas, electric, and convection (fan) ovens. Note that toaster ovens and air fryers have smaller cavities and may cook faster, so reduce temperatures by an additional 25°F regardless of conversion results.
Why do gas marks only go up to 10?
UK standard gas markings range from 1 (lowest, ~275°F) to 10 (highest, ~500°F), which covers all common baking, roasting, and broiling needs. Most home recipes never exceed Gas Mark 8 (450°F).
Is the fan oven adjustment always accurate?
The 25°F/15°C reduction is a standard guideline, but some convection ovens have adjustable fan speeds. If your oven has a dedicated "convection bake" setting, it may already apply this adjustment automatically, so uncheck the fan oven box in that case.
Additional Guidance
For best results, pair temperature conversions with time adjustments: fan ovens also reduce cooking time by 10-20%, so check dishes 5-10 minutes early. Keep an oven thermometer in your oven to verify actual temperatures, as built-in oven thermostats can be off by 20-30°F over time. When converting temperatures for candy making or deep frying, use precise digital thermometers rather than relying on oven settings, as these tasks require exact temperature control.