All-purpose flour Cups to Grams
Convert cups of all-purpose flour to grams. One US cup of all-purpose flour weighs 120g when unsifted and measured spooned and leveled.
1 cup of all-purpose flour =
120grams
US cup / 240 ml · unsifted · spooned and leveled
Data last verified: August 4, 2026
Convert cups to grams
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1 US cup of All-purpose flour =
120grams
About 4.2 ounces
Based on 1 US cup of All-purpose flour = 120g
All-purpose flour cups to grams conversion table
Open a row with its anchor link or copy the complete result for your recipe notes.
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 to measure all-purpose flour
- Ingredient state
- unsifted
- Measurement method
- 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 can pack the cup and add up to 25% more weight.
- 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 | Measurement method | Adopted here | Checked |
|---|---|---|---|---|---|---|
| King Arthur Baking — Ingredient Weight Chart | 120 g/1 source cup (exact volume unknown) | 120g | Direct | spooned and leveled | Adopted | 2026-07-18 |
| USDA FoodData Central — Wheat flour, white, all-purpose, enriched, bleached (FDC 168894)FDC ID: 168894Backup mirror reference: nutritionvalue.org mirror (backup reference) | 125 g/1 source cup (exact volume unknown) | 125g | Direct | not specified (USDA Handbook 8 convention, typically dip-and-level) | 2026-08-04 |
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 all-purpose flour weighs approximately 120 grams when unsifted and measured spooned 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 all-purpose flour in a unsifted state and measure it spooned and leveled. 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.
Convert in the other direction
Convert a gram weight of all-purpose flour back into US or metric cups.