All-Purpose Flour: Grams to Cups
1 cup of all-purpose flour = 125 grams
One US cup of all-purpose flour weighs 125 grams. One 250 ml metric cup — the one used in the UK, Australia, New Zealand and Canada — holds 132 grams. To convert any weight, divide the grams by the figure for your cup.
A cup of all-purpose flour weighs 125 g when it is spooned into the cup and levelled — USDA FoodData Central records exactly that — and King Arthur Baking, which fluffs the flour first, weighs it at 120 g. Scoop the cup straight through the bag and it can reach 140–150 g.
Why a cup of flour has three different weights
Flour is mostly air until it is packed. A bag that has sat on a shelf settles; a cup dragged through it compresses the flour against the side of the bag and comes out heavy. Spoon it in loosely and sweep the top flat and you get the lighter figure the recipe writer almost certainly meant.
The two published references this site checks agree closely once you know how each one filled the cup. USDA's household measure for enriched, bleached all-purpose flour is 125 g per cup. King Arthur's chart, which asks you to fluff the flour, sprinkle it into the cup and level it, gives 120 g. Both are defensible; this site uses 125 g because it sits in the middle of how most American recipes are actually measured.
The number to avoid is the scooped one. Twenty extra grams per cup across three cups of flour is a quarter-cup of flour the recipe never asked for, and it shows up as dry cake, tight cookies and bread that will not rise.
How to measure it without a scale
Stir the flour in its bag or canister to loosen it. Spoon it into a dry measuring cup until it mounds over the rim, without tapping or shaking the cup. Sweep the excess off with the back of a knife. That is the spooned-and-levelled method and it lands within a few grams of 125 g every time.
Sifting before measuring makes the cup lighter again — sifted all-purpose flour runs closer to 115 g. Only sift first when the recipe says "1 cup sifted flour". "1 cup flour, sifted" means measure first, then sift.
Self-rising and bleached vs unbleached
USDA lists bleached, unbleached and self-rising all-purpose flour at the same 125 g per cup. The small amount of baking powder and salt in self-rising flour does not change the volume weight in any way you can measure at home, so the same conversions apply — just do not add the leavening again.
Where the 125 g figure comes from
- USDA FoodData Central: 1 cup of “Wheat flour, white, all-purpose, enriched, bleached” = 125 g (FDC ID 168894)
- King Arthur Baking ingredient weight chart: All-Purpose Flour, 1 cup = 120 g (chart)
This site uses 125 g per US cup of all-purpose flour, spooned and levelled. References checked September 2026.
How many cups is X grams of all-purpose flour?
| Grams | US cups | Metric cups | Tablespoons | Ounces |
|---|---|---|---|---|
| 25 g all-purpose flour | ¼ | 0.19 | 3.2 | 0.88 |
| 50 g all-purpose flour | ⅜ | ⅜ | 6.4 | 1.76 |
| 75 g all-purpose flour | ⅝ | ⅝ | 9.6 | 2.65 |
| 100 g all-purpose flour | ¾ | ¾ | 12.8 | 3.53 |
| 110 g all-purpose flour | ⅞ | ⅞ | 14.08 | 3.88 |
| 120 g all-purpose flour | 0.96 | ⅞ | 15.36 | 4.23 |
| 125 g all-purpose flour | 1 | 0.95 | 16 | 4.41 |
| 130 g all-purpose flour | 1.04 | 1 | 16.64 | 4.59 |
| 140 g all-purpose flour | 1⅛ | 1.06 | 17.92 | 4.94 |
| 150 g all-purpose flour | 1¼ | 1⅛ | 19.2 | 5.29 |
| 170 g all-purpose flour | 1⅜ | 1¼ | 21.76 | 6.00 |
| 175 g all-purpose flour | 1⅜ | 1⅓ | 22.4 | 6.17 |
| 200 g all-purpose flour | 1⅝ | 1½ | 25.6 | 7.05 |
| 225 g all-purpose flour | 1¾ | 1⅔ | 28.8 | 7.94 |
| 240 g all-purpose flour | 1⅞ | 1⅞ | 30.72 | 8.47 |
| 250 g all-purpose flour | 2 | 1⅞ | 32 | 8.82 |
| 275 g all-purpose flour | 2¼ | 2⅛ | 35.2 | 9.70 |
| 300 g all-purpose flour | 2⅜ | 2¼ | 38.4 | 10.58 |
| 350 g all-purpose flour | 2¾ | 2⅔ | 44.8 | 12.35 |
| 400 g all-purpose flour | 3¼ | 3 | 51.2 | 14.11 |
| 450 g all-purpose flour | 3⅝ | 3⅜ | 57.6 | 15.87 |
| 500 g all-purpose flour | 4 | 3¾ | 64 | 17.64 |
How to measure all-purpose flour accurately
The 125 g figure assumes the spooned-and-levelled method: spoon the all-purpose flour into a dry measuring cup and sweep the top flat with a straight edge. Scooping the cup through the bag compacts it and gives a heavier cup.
- 1 US cup of all-purpose flour = 125 g
- 1 metric cup (250 ml) of all-purpose flour = 132 g
- ¾ cup = 94 g
- ½ cup = 63 g
- ⅓ cup = 42 g
- ¼ cup = 31 g
- 1 tablespoon = 7.8 g
Frequently asked questions
How many cups is 100 grams of all-purpose flour?
100 grams of all-purpose flour is about ¾ US cups, based on 125 g per cup, or ¾ metric cups.
How many grams in a cup of all-purpose flour?
One US cup of all-purpose flour weighs 125 grams. A 250 ml metric cup holds 132 grams.
How many cups is 250 grams of all-purpose flour?
250 grams of all-purpose flour is about 2 US cups, or 1⅞ metric cups.
Does a UK cup of all-purpose flour weigh the same as a US cup?
No. A UK, Australian or Canadian metric cup is 250 ml against the US 236.6 ml, so it holds about 5.7% more — 132 g of all-purpose flour rather than 125 g.
How many tablespoons is 100 grams of all-purpose flour?
100 grams of all-purpose flour is about 12.8 tablespoons.
Is 1 cup of flour 120 g or 125 g?
Both are published. King Arthur Baking uses 120 g (flour fluffed and sprinkled in); USDA FoodData Central lists 125 g. This site uses 125 g. If a recipe comes from King Arthur, use 120 g.
How many grams is 2 cups of flour?
250 g spooned and levelled, or 240 g on King Arthur's figure. Scooped, 2 cups can weigh 280–300 g.
See also: How Many Cups is 250 Grams of Flour?.