All-Purpose Flour Cups to Grams
Snapshot
1 cup of all-purpose flour equals 120 grams. Conversion Encyclopedia keeps one fixed ingredient basis on this page so the calculator, common values, and reverse page stay aligned.
- 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.
Use the interactive calculator below for custom values and the common-value table for quick checks.
Converter Calculator
120 Grams
SwitchExplanation
Use this page when a recipe gives all-purpose flour in cups and you need a repeatable gram target. The converter keeps the assumption explicit: 1 level US cup of all-purpose flour = 120 grams.
That makes recipe scaling easier without switching between inconsistent cup charts. The page stays anchored to the US cup standard (236.588 mL). This basis assumes the common spoon-and-level method, where flour is spooned into the cup and leveled rather than packed down.
Reference & Scope
King Arthur Baking lists one cup of all-purpose flour at 120 grams and recommends weighing flour for the most consistent result.
- Values are calculated from one explicit conversion basis.
- Displayed results are rounded only after the underlying calculation.
- Real measured materials and ingredients can vary from the stated reference basis.
- Source: King Arthur Baking Ingredient Weight Chart (Practical ingredient volume-to-weight reference used for the stated ingredient basis.)
Common Conversion Values
| Cup | Grams |
|---|---|
| 0.25 | 30 |
| 0.33 | 40 |
| 0.5 | 60 |
| 0.75 | 90 |
| 1 | 120 |
| 1.5 | 180 |
| 2 | 240 |
| 3 | 360 |
Frequently Asked Questions
How many grams are in 1 cup of all-purpose flour?
This converter uses 120 grams for 1 level US cup of all-purpose flour.
How many grams are in half a cup of all-purpose flour?
Half a US cup equals 60 grams with the 120-gram cup basis.
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.