All-Purpose Flour Cups to Grams
Convert cups of all-purpose flour to grams. One US cup of unsifted all-purpose flour weighs 120g when spooned into the cup and leveled.
1 cup of all-purpose flour = 120 grams
US cup / 240 ml · unsifted · spooned and leveled
Convert cups to grams
Enter an amount greater than 0.
1 US cup of all-purpose flour equals
120 grams
- Tablespoons 16 tbsp
- Teaspoons 48 tsp
- Milliliters 240 ml
- Ounces 4.2 oz
Based on 1 US cup of all-purpose flour = 120g
Customize grams per cup
Enter a number of grams greater than 0.
Conversions are approximate and may vary by ingredient brand, packing, humidity, and measuring method. Spoons: 15 ml tablespoon, 5 ml teaspoon. Kitchen estimates have up to 10% volume rounding error; very small amounts use a threshold. See Methodology for the policy.
All-purpose flour cups to grams conversion table
Open a row with its anchor link or copy the complete result for your recipe notes.
| Cups | Grams | tbspTablespoons | tspTeaspoons | ml | Copy or link to result |
|---|---|---|---|---|---|
| ¼ cup | 30g | 4 | 12 | 60 | |
| ⅓ cup | 40g | 5.33 | 16 | 80 | |
| ½ cup | 60g | 8 | 24 | 120 | |
| ⅔ cup | 80g | 10.67 | 32 | 160 | |
| ¾ cup | 90g | 12 | 36 | 180 | |
| 1 cup | 120g | 16 | 48 | 240 | |
| 1½ cups | 180g | 24 | 72 | 360 | |
| 2 cups | 240g | 32 | 96 | 480 |
Values use a US cup (240 ml), a 15 ml tablespoon and a 5 ml teaspoon. Weights are rounded to the nearest gram.
Cup type comparison
“One cup” is not a single worldwide volume. Select the standard used by your recipe.
| Cup type | Volume | 1 cup all-purpose flour |
|---|---|---|
| US cup / 240 ml | 240 ml | 120g |
| US customary cup / 236.6 ml | 236.6 ml | 118.3g |
| Metric cup / 250 ml | 250 ml | 125g |
How this conversion is calculated
Adopted reference value
1 cup of all-purpose flour = 120 grams
Data last verified: 2026-08-04
Cup type
US cup / 240 ml
Measuring method
Unsifted · spooned and leveled
Measurement notes
- Flour weight varies by scooping, spooning, sifting, humidity, and brand.
- Spoon flour into the cup and level with a knife — do not scoop.
- Scooping packs the flour, so the cup ends up noticeably heavier.
- Use a kitchen scale for the most accurate baking results.
Sources & how they compare
The adopted value and every comparison below come from the site's versioned ingredient dataset.
| Source | Reported value | Comparable source-cup value | Type | Method the source states | Adopted here | Checked |
|---|---|---|---|---|---|---|
| King Arthur Baking — Ingredient Weight Chart | 120 g per 1 cup (volume not stated) | 120g | Direct | not stated in the chart; King Arthur's flour-measuring guide: fluff, spoon in, level | Adopted | 2026-07-18 |
| USDA FoodData Central — Wheat flour, white, all-purpose, enriched, bleached (FDC 168894) FDC ID: 168894 Backup copy: nutritionvalue.org | 125 g per 1 cup (volume not stated) | 125g | Direct | not specified | 2026-08-04 |
Measuring step this site recommends: spooned and leveled. Method reference: King Arthur Baking, “How to measure flour the right way” (2023-10-13)
When sources disagree, follow your recipe: use its gram weights if it gives them, or measure the way its author did. The adopted value is one stated convention, not a correction of the other sources.
A comparable source-cup value only scales a half-cup or tablespoon serving to one source cup. When a source does not state the cup's exact volume, we do not present it as a fixed-milliliter normalization.
Frequently asked questions
How many grams are in 1 cup of all-purpose flour?
One US cup (240 ml) of unsifted all-purpose flour weighs approximately 120 grams when spooned into the cup and leveled.
How many grams are in ½ cup of all-purpose flour?
Half a US cup of all-purpose flour weighs approximately 60 grams.
How should I measure all-purpose flour for this conversion?
Use unsifted all-purpose flour, spoon it into the cup and level it off. Changing the preparation or packing method can change the weight in a cup.
Does a metric cup of all-purpose flour weigh the same as a US cup?
No. A metric cup is 250 ml, while the default US cup is 240 ml. One metric cup of all-purpose flour weighs approximately 125g.
Why can another all-purpose flour cups-to-grams chart show a different number?
Cup size, ingredient state, and measuring method can all change the result. This page states all three and links the source observations used for the adopted value.
Can I convert all-purpose flour from grams back to cups?
Yes. Use the linked All-Purpose Flour Grams to Cups page for the reverse calculation.