Oven Temperature Converter
Convert recipe oven settings between Fahrenheit, Celsius, gas mark, and fan oven temperatures. Use the fan setting as a practical starting point, then check doneness with your own oven.
Recipe Setting
Converted Oven Settings
Quick Reference
How to Use the Converter
Enter the temperature from your recipe, choose its unit, and read the equivalent conventional oven, fan oven, Fahrenheit, Celsius, and gas mark settings. If your recipe already gives a fan temperature, the converter adds the standard fan adjustment first so the other outputs stay consistent.
Oven temperature charts are practical cooking guides, not lab measurements. Many recipes round to the nearest common dial setting, and real ovens can run hotter or cooler than their display. For baking, keep an eye on color and texture; for meat, poultry, and fish, use a food thermometer for doneness.
Formulas and Assumptions
- Fahrenheit from Celsius: °F = °C x 9 / 5 + 32.
- Celsius from Fahrenheit: °C = (°F - 32) x 5 / 9.
- Fan oven assumption: fan °C = conventional °C - 20, then converted to Fahrenheit.
- Common oven dial values snap to the recipe chart, so 350°F is treated as 180°C / gas mark 4 rather than the exact 176.7°C formula result.
- Gas marks use a common recipe chart, with gas mark 4 treated as 350°F / 180°C.
Sources used to verify the conversion chart include Good Food's conversion guide, Which?'s oven temperature table, and Smeg UK's oven conversion chart.
FAQs
Why does the fan oven temperature come out lower?
Fan ovens move hot air around the food, so many recipes use about 20°C less heat than a conventional oven.
What is gas mark 4?
Gas mark 4 is commonly listed as 350°F, 180°C, or 160°C fan. It is a moderate oven setting.
Why do charts sometimes disagree by 5 or 10 degrees?
Recipes and oven dials round to practical settings. This tool rounds to kitchen-friendly values and labels the nearest common gas mark.
Can I use this for candy or chocolate temperatures?
No. This page is for oven settings. Use a thermometer and a specific candy or chocolate guide for stovetop sugar stages and tempering.
Is this converter private?
Yes. It runs in your browser, and your temperature input is not sent anywhere.
5 Fun Facts about Oven Temperatures
- 350°F became a recipe shorthand. It is a moderate oven setting, which is why so many bakes use it as a reliable starting point.
- Gas marks are a dial language. They map to practical oven ranges rather than exact scientific temperatures.
- Fan ovens change heat transfer. Moving air strips away cooler air around food, so the same bake often needs a lower setting.
- Oven dials are rounded on purpose. Recipes usually use memorable 25°F, 10°C, or 20°C steps instead of exact conversion decimals.
- Preheating affects timing. A fully heated oven gives more repeatable results, especially for cakes, bread, pastry, and roasted foods.
How it works
The converter normalizes every input to a conventional Celsius oven setting, then calculates the equivalent Fahrenheit, fan oven, gas mark, and range label.