Flour Cups to Grams Converter
Convert between cups and grams for 9 types of flour. Each flour has a different density — 1 cup of all-purpose flour is 125g, but 1 cup of almond flour is just 96g. Our converter knows the difference.
Quick reference: All-purpose flour
125g
= 1 cup
7.81g
= 1 tbsp
2.6g
= 1 tsp
4.41oz
= 1 cup
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Flour is the single most mismeasured ingredient in home baking, and the reason is simple: a cup of flour does not have a fixed weight. King Arthur Baking's official weight chart lists all-purpose flour at 120 grams per cup using the spoon-and-level method, but scoop directly from the bag and you will pack in closer to 155 grams — nearly 30 percent more. That variance alone is enough to turn a tender cake into a dense brick. Now multiply the problem across nine different flour types, each with its own density, and you start to see why professional bakers abandoned volume measurements decades ago.
The range across flour types is dramatic. All-purpose flour sits at 125 grams per cup in our database, almond flour drops to just 96 grams, and potato starch jumps to 192 grams — double the weight of almond flour in the same measuring cup. Coconut flour absorbs roughly four times more liquid than wheat flour, so swapping by volume without adjusting the weight would wreck both texture and hydration. Bread flour runs 130 grams per cup because its higher protein content makes it denser than cake flour at 114 grams. Every one of these numbers matters if you are scaling a recipe or converting between US cups and the gram-based measurements used everywhere else in the world.
Flour Types — Cups to Grams Chart
| Flour Type | 1 Cup | ½ Cup | ¼ Cup |
|---|---|---|---|
| All-purpose flour | 125g | 63g | 31g |
| Bread flour | 130g | 65g | 33g |
| Cake flour | 114g | 57g | 29g |
| Whole wheat flour | 128g | 64g | 32g |
| Almond flour | 96g | 48g | 24g |
| Coconut flour | 128g | 64g | 32g |
| Rye flour | 102g | 51g | 26g |
| Cornstarch | 128g | 64g | 32g |
| Potato starch | 192g | 96g | 48g |
Frequently Asked Questions
How many grams is 1 cup of all-purpose flour?
One cup of all-purpose flour weighs approximately 125 grams using the spoon-and-level method. Scooping directly from the bag can pack in up to 155g, which is why weighing flour is more reliable.
How many grams in a cup of almond flour?
One cup of almond flour weighs about 96 grams — significantly lighter than wheat flour. Almond flour is made from ground blanched almonds and has a coarser, less compact texture than grain flours.
Why does flour weight per cup vary so much?
Different flours have different particle sizes, protein content, and moisture levels. Bread flour (130g/cup) is denser due to higher protein. Almond flour (96g/cup) is lighter because nut particles trap more air than grain particles.
Can I substitute flours by cup measurement?
Not reliably. Coconut flour absorbs about 4x more liquid than wheat flour, so a cup-for-cup swap would produce dry, crumbly results. Always convert by weight and adjust liquid ratios when substituting flour types.
What method does this converter use?
Our weights are based on the spoon-and-level method, consistent with King Arthur Baking and USDA references. Spoon flour into the cup, level off with a knife — do not scoop or tap the cup.
Is bread flour heavier than all-purpose flour?
Yes. Bread flour weighs about 130 grams per cup versus 125 for all-purpose. The extra 5 grams comes from higher protein (gluten) content, which makes bread flour slightly denser.