Temperature and mass units have defined mathematical conversions. Cups measure volume; converting a cup to grams requires the ingredient and measuring method. Use the original recipe’s gram weights where available.
Fahrenheit to Celsius
Ounces to grams
Check the formulas
Celsius = (Fahrenheit − 32) × 5 ÷ 9. Grams = mass ounces × 28.349523125. A fluid ounce is a volume and is not accepted by the weight calculator.
An arithmetic temperature conversion does not adjust a recipe for fan-assisted cooking or override equipment limits. Ingredient-specific volume guidance is available in the linked weight chart.
Sources & scope
Source-based explanation and editorial checklists by SourdoughStart, operated by Tag Ad Limited. AI-assisted article revised 2026-10-12. Source links are not endorsements.
Revision note: prepared for the new reference-led edition. Suggest a correction.