All-Purpose Flour Cups to Grams
Snapshot
1 cup of all-purpose flour equals 120 grams.
- Reference basis: 120 g per 1 US cup.
- Example: For 1/2 US cup of all-purpose flour, the result is 60 grams.
- Source basis: King Arthur Baking Ingredient Weight Chart.
Interactive conversion
Converter Calculator
Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.
120 Grams
SwitchWith 1 cup of All-Purpose Flour, that equals 120 grams.
API and AI agent access
All-Purpose Flour Cups to Grams. Material: all-purpose-flour.
Machine-readable identifiers
- Conversion family
cooking- Source unit
cup_us- Target unit
gram- Ingredient
all-purpose-flour
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": 1,
"from": "cup_us",
"to": "gram",
"material": "all-purpose-flour"
}Essential response
{
"ok": true,
"conversion": {
"family": "cooking",
"value": 1,
"from": "cup_us",
"to": "gram",
"result": {
"raw": 120,
"display": "120"
},
"canonicalPath": "/cooking/cups-to-grams/all-purpose-flour/"
}
}Explanation
All-purpose flour is sensitive to measuring technique: scooping directly from a bag can compact more flour than spooning it into a cup and leveling the top. This converter uses a level US cup at 120 grams, which is a practical baking reference rather than a claim that every filled cup has identical mass.
Multiply US cups by 120 grams per cup. Use a kitchen scale when recipe accuracy matters, especially for bread, pastry, or large batches.
All-purpose Flour uses a recorded reference of 120 grams per US cup in this dataset. Confidence: high. Source basis: King Arthur Ingredient Weight Chart (All-Purpose Flour: 1 cup = 120g)
Evidence status: reference-recorded. The source note is recorded; this does not certify every preparation or measurement condition. Particle size, aeration, settling, and whether the cup is scooped or spoon-filled can materially change the mass held by the same volume.
Reference & Scope
King Arthur Baking lists one cup of all-purpose flour at 120 grams and recommends weighing flour for the most consistent result.
- Source: King Arthur Baking Ingredient Weight Chart (Practical ingredient volume-to-weight reference used for the stated ingredient basis.)
Common Conversion Values
| Cup | Grams |
|---|---|
| 1/4 | 30 |
| 1/3 | 40 |
| 1/2 | 60 |
| 3/4 | 90 |
| 1 | 120 |
| 1 1/2 | 180 |
| 2 | 240 |
| 3 | 360 |
Questions & answers
Frequently Asked Questions
Why can a cup of flour weigh more than 120 grams?
Scooping, packing, humidity, flour brand, and cup technique can change the measured mass. A scale avoids that variation.