Caster Sugar Grams to Cups
Snapshot
100 grams of caster sugar equals 0.53 cups.
- Reference basis: 190 g per 1 US cup.
- Example: For 190 g of caster sugar, the result is about 1 cup with the same basis.
Interactive conversion
Converter Calculator
Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.
0.53 Cups
SwitchWith 100 grams of Caster Sugar, you get a little over half a cup.
API and AI agent access
Caster Sugar Grams to Cups. Material: caster-sugar.
Machine-readable identifiers
- Conversion family
cooking- Source unit
gram- Target unit
cup_us- Ingredient
caster-sugar
Use these identifiers in the API request. Sources and model limits also apply to software clients.
Example API request and response
POST /api/v1/convertRequest
{
"family": "cooking",
"value": 100,
"from": "gram",
"to": "cup_us",
"material": "caster-sugar"
}Essential response
{
"ok": true,
"conversion": {
"family": "cooking",
"value": 100,
"from": "gram",
"to": "cup_us",
"result": {
"raw": 0.5263157894736842,
"display": "0.53"
},
"canonicalPath": "/cooking/grams-to-cups/caster-sugar/"
}
}Explanation
The converter converts caster sugar from grams into cups. In this converter, 100 grams of caster sugar is about 0.53 US cup, 150 grams is about 0.79 cup, and 190 grams is about 1 cup.
Caster sugar is finer than granulated sugar, so this page keeps one caster-sugar-specific cup basis.
Caster Sugar uses a recorded reference of 190 grams per US cup in this dataset. Confidence: high. Source basis: King Arthur Ingredient Weight Chart (Baker's Special Sugar / castor sugar: 1 cup = 190g)
Evidence status: reference-recorded. The source note is recorded; this does not certify every preparation or measurement condition. Crystal size, packing, moisture, and syrup concentration can change how much mass occupies the same kitchen volume.
Common Conversion Values
| Grams | Cups |
|---|---|
| 25 | 0.13 (about 1/8 cup) |
| 50 | 0.26 |
| 100 | 0.53 |
| 150 | 0.79 |
| 190 | 1.00 (about 1 cup) |
| 200 | 1.05 |
| 250 | 1.32 |