Ingredient Conversion
Convert caster sugar from grams into cups with rounded kitchen-friendly values and a quick reference table.
Caster Sugar does not use the same grams-to-cups value as every other ingredient. Using a practical US cup reference, 200 grams of caster sugar is about 1 cup.
That means 100 grams of caster sugar is about 0.5 cups, while 200 grams is about 1 cups.
Caster sugar has finer crystals than granulated sugar but weighs about the same per cup due to its consistent packing density.
To convert grams to cups, divide the gram amount by the grams-per-cup reference for the ingredient. For this page, the working reference is about 200 grams per US cup.
This makes the page useful for quick kitchen checks, but a scale is still the best tool when a recipe depends on tight ratios.
| Grams | Cups |
|---|---|
| 25 | About 0.12 cups |
| 50 | About 0.25 cups |
| 75 | About 0.38 cups |
| 100 | About 0.5 cups |
| 125 | About 0.62 cups |
| 150 | About 0.75 cups |
| 200 | About 1 cups |
| 250 | About 1.25 cups |
| 300 | About 1.5 cups |
| 400 | About 2 cups |
This page is useful when a recipe gives caster sugar in grams but you only have measuring cups, or when you want a fast reference before opening the full converter.
For baking, repeated recipes, or larger batches, measuring caster sugar directly in grams is usually the more dependable choice.
A practical US cup reference for Caster Sugar is about 200 grams per cup.
Caster sugar has finer crystals than granulated sugar but weighs about the same per cup due to its consistent packing density.
For repeatable cooking and recipe scaling, grams are usually the more reliable way to measure caster sugar.
Use the main grams-to-cups converter for other ingredients, cup standards, and custom values.