how many grams in a cup of granulated sugar?

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conversion reference

things people ask

• Does granulated sugar pack down like flour?
  Not significantly. The crystals are rigid and roughly uniform, so a cup measured by scoop versus spoon-and-level usually differs by only 3-5 g. That's why most baking books treat 1 cup of granulated sugar as a stable 198-200 g, while flour conversions vary by 20+ g depending on technique.
• Why does my cake recipe call for sugar by weight if cups are reliable?
  Cup measurement is reliable for granulated sugar specifically — but recipes get scaled, halved, and translated across regions. Weighing 198 g removes the question of which size cup the recipe author meant (US, metric, or imperial) and keeps the sugar-to-flour ratio honest when you double a batch.
• Can I substitute caster sugar cup-for-cup for granulated?
  By volume, roughly yes — but caster sugar's finer crystals pack tighter, so 1 cup runs about 200-225 g instead of 198 g. For creaming butter or making meringues, caster dissolves faster and gives a smoother texture. For a 1:1 weight swap, use the gram amount and don't rely on the cup line.

related conversions

• Granulated Sugar: tablespoons to grams
• Granulated Sugar: teaspoons to grams
• Granulated Sugar guide