Flour cups to grams
Flour is the one ingredient most home bakers get wrong with a cup. The same one-cup measure can hold 110 grams or 145 grams of flour. The trick is how you scoop. The tool above uses the spoon-and-level value of 120 grams per US cup. If you weigh, you skip the mistake.
Quick fill (cups)
Conversion uses 120 g per US cup for all-purpose flour. Cup size: US 236.59 ml. Weights are approximate.
Spoon and level. Scooped flour packs heavier and throws bakes off.
Common flour amounts in cups and grams
All-purpose flour, US cup, spoon-and-level method:
- 1/4 cup flour = 30 g
- 1/3 cup flour = 40 g
- 1/2 cup flour = 60 g
- 2/3 cup flour = 80 g
- 3/4 cup flour = 90 g
- 1 cup flour = 120 g
- 1 1/4 cups flour = 150 g
- 1 1/2 cups flour = 180 g
- 2 cups flour = 240 g
- 3 cups flour = 360 g
- 4 cups flour = 480 g
| Ingredient | 1/4 c | 1/3 c | 1/2 c | 2/3 c | 3/4 c | 1 c |
|---|---|---|---|---|---|---|
| All-purpose flour | 30 g | 40 g | 60 g | 80 g | 90 g | 120 g |
Why scoop-and-pack gives the wrong answer
When you push a measuring cup into a bag of flour, the flour packs in. A scooped cup of all-purpose flour weighs 130 to 145 grams. The recipe writer almost always meant 120 grams. You end up with 10 to 20 percent too much flour, which is enough to dry out cookies, toughen muffins, and shrink a cake.
The fix is two parts. First, fluff the flour in the bag with a spoon. Second, spoon the flour into the cup, then level the top with the flat side of a knife. No tapping, no shaking. The cup ends up around 120 grams, the number recipes assume.
If you bake more than once a week, get a kitchen scale. A 20-dollar digital scale solves the problem forever and pays for itself the first time it saves a batch.
FAQ
- How many grams is 1 cup of flour?
- 1 US cup of all-purpose flour is 120 grams when spooned and leveled. Bread flour is 127 grams. Cake flour is 114 grams. Whole wheat is 113 grams.
- How many grams is 2 cups of flour?
- 2 US cups of all-purpose flour is 240 grams. Some recipes round it to 250 grams.
- Is 1 cup of flour 125 grams?
- Some references list 125 grams. King Arthur Baking and most modern recipe writers use 120 grams. The 4 percent difference is small but real. If your recipe came from King Arthur, use 120. If it came from another source, the writer's note will say.
- Why does my flour cup weigh more than 120 grams?
- You probably scooped instead of spooning. Scooping packs the flour and adds 10 to 25 grams. Use a spoon to fill the cup, then level the top with a knife. Or weigh on a scale and skip the question.
- Does the brand of flour change the weight per cup?
- A little. Different brands have different particle sizes and starch contents. The variation is usually under 5 percent for all-purpose flour. For most baking it does not change the result.
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