½ Cup of Flour in Grams
62.5 g in a US cup — and what that figure assumes
½ cup of all-purpose flour weighs 62.5 grams, measured in a US cup.
That figure comes from one number: a full US cup of all-purpose flour is 125 g. Everything else on this page is that number scaled.
Spoon the flour into the cup and sweep it level with a knife. Dragging the cup through the bag compacts it, and that cup weighs 140–150 g instead of 125 g — up to 20% more flour than the recipe wanted.
Whose cup you mean changes the answer. A 250 ml metric cup — the standard in the UK, Australia, New Zealand and Canada — is 5.7% larger than the 236.6 ml US cup, so half a cup of all-purpose flour is 66 g there rather than 62.5 g.
½ cup of flour in each cup standard
| Cup standard | Size | Grams | Ounces |
|---|---|---|---|
| US customary | 236.6 ml | 62.5 g | 2.20 oz |
| Metric (UK, AU, NZ, CA) | 250 ml | 66 g | 2.33 oz |
| Imperial (older UK) | 284 ml | 75.1 g | 2.65 oz |
A recipe that just says "cups" is almost always American. If yours came from a British, Australian or New Zealand source, take the metric row — on a 62.5 g measure the gap is 3.5 g.
Halving and doubling flour
Recipes get scaled more often than they get followed exactly. These are the portions of all-purpose flour a cook actually reaches for, already weighed out.
| Cups | Grams | Ounces | Tablespoons |
|---|---|---|---|
| ¼ cup | 31.3 g | 1.10 oz | 4 |
| ⅓ cup | 41.7 g | 1.47 oz | 5.33 |
| ½ cup | 62.5 g | 2.20 oz | 8 |
| ⅔ cup | 83.3 g | 2.94 oz | 10.67 |
| ¾ cup | 93.8 g | 3.31 oz | 12 |
| 1 cup | 125 g | 4.41 oz | 16 |
| 1½ cups | 188 g | 6.61 oz | 24 |
| 2 cups | 250 g | 8.82 oz | 32 |
| 3 cups | 375 g | 13.23 oz | 48 |
½ cup of flour in other units
| Unit | Amount |
|---|---|
| Grams | 62.5 g |
| Ounces (weight) | 2.20 oz |
| Pounds | 0.138 lb |
| Tablespoons | 8 |
| Teaspoons | 24 |
| Millilitres (the space it fills) | 118 ml |
This is plain all-purpose flour. Bread flour packs slightly heavier at 130 g per cup and cake flour lighter at 100 g, so a recipe written for one is not a straight swap by volume.
½ cup of something else
The same cup holds a different weight of everything, because ingredients do not weigh the same for their size.
| Ingredient | Grams per US cup | ½ cup weighs |
|---|---|---|
| Butter | 227 g | 114 g |
| Oats | 90 g | 45 g |
Frequently asked questions
How many grams is ½ cup of flour?
½ cup of all-purpose flour is 62.5 grams in a US cup, based on 125 g per full cup. In a 250 ml metric cup it is 66 g.
Is that weighed or measured?
Measured, then weighed on a scale. Spoon the flour into the cup and sweep it level with a knife. Dragging the cup through the bag compacts it, and that cup weighs 140–150 g instead of 125 g — up to 20% more flour than the recipe wanted. A scale skips the question, which is why recipes that care about the result give grams.
How many tablespoons is ½ cup of flour?
8 tablespoons, or 24 teaspoons — 7.81 g per tablespoon for all-purpose flour.
How many ounces is ½ cup of flour?
2.20 ounces by weight. That is not the same as fluid ounces — ½ cup is 4 US fluid ounces of space, whatever is filling it.
Why do different sites give different grams for ½ cup of flour?
Because a cup is a volume and the weight depends on how it was filled, and on whose cup. This site uses 125 g per US cup. This is plain all-purpose flour. Bread flour packs slightly heavier at 130 g per cup and cake flour lighter at 100 g, so a recipe written for one is not a straight swap by volume.