Fahrenheit to Celsius (Cooking) Converter Formula

Understand the math behind the fahrenheit to celsius (cooking) converter. Each variable explained with a worked example.

Use the Fahrenheit to Celsius (Cooking) Converter

Formulas Used

Celsius

celsius = (value - 32) * 5 / 9

Gas Mark (Approx)

gas_mark = (value - 250) / 25

Variables

VariableDescriptionDefault
valueTemperature (°F)(°F)350

How It Works

Cooking Temperature Conversion

°C = (°F - 32) x 5/9

Common Cooking Temperatures

°F°CUse 250121Low/slow roasting 325163Slow bake 350177Standard baking 375191Moderate 400204Hot oven 425218Pizza, bread 450232Very hot 500260Broil-like

Worked Example

Convert 350°F (standard baking) to Celsius.

value = 350
  1. 01Celsius = (350 - 32) x 5/9
  2. 02Celsius = 318 x 5/9 = 177°C
  3. 03Gas Mark approx = (350 - 250) / 25 = 4

Frequently Asked Questions

Why do recipes use different temperature scales?

American recipes use Fahrenheit, while most other countries use Celsius. British recipes sometimes use Gas Marks. Always verify which scale a recipe uses before setting your oven.

Should I round oven temperatures?

Yes. Home ovens are not precise enough for exact temperatures. Round to the nearest 5 or 10 degrees. A 5°C difference will not noticeably affect most recipes.

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