Cups to Grams — Flour
Convert cups of flour to grams and back. Quick reference table for plain, self-raising, bread, wholemeal, almond and coconut flour with accurate weights per cup.
Plain Flour (All-Purpose)
1 US cup = 125g
Quick Reference — Plain Flour (All-Purpose)
| Cups | Grams | Ounces |
|---|---|---|
| ¼ cup | 31g | 1.1oz |
| ⅓ cup | 42g | 1.5oz |
| ½ cup | 63g | 2.2oz |
| ⅔ cup | 83g | 2.9oz |
| ¾ cup | 94g | 3.3oz |
| 1 cup | 125g | 4.4oz |
| 1½ cups | 188g | 6.6oz |
| 2 cups | 250g | 8.8oz |
| 3 cups | 375g | 13.2oz |
Related Ingredients
Tips
Spoon flour into the cup and level off — don't scoop or pack. Scooping can add 30g+ extra per cup.
Cup measurements can vary by up to 20% depending on how you fill the cup. For consistent baking results, weighing ingredients in grams is always more accurate.
How Much Does a Cup of Flour Weigh?
1 US cup of all-purpose flour = 125 grams (sifted) or 130-140 g (scooped, more packed). Bread flour is similar at 130 g. Whole wheat: 120 g. Cake flour: 115 g. The variation comes from how the flour was measured - sifted flour is less dense than scooped flour, by 10-15%. For consistent baking, use weight measurements when possible.
King Arthur Flour (US) standardises on 120 g/cup; Joy of Cooking uses 125 g; many UK sources use 150 g/cup based on the slightly larger 250 ml metric cup. Use the recipe's source country for which cup standard applies. American recipes assume the 240 ml US cup with 120-130 g of flour.
Cups of Flour to Grams
| Cups | Grams (sifted) | Grams (scooped) |
|---|---|---|
| 1/4 cup | 31 g | 33 g |
| 1/2 cup | 62 g | 65 g |
| 3/4 cup | 94 g | 98 g |
| 1 cup | 125 g | 130 g |
| 1.5 cups | 188 g | 195 g |
| 2 cups | 250 g | 260 g |
| 3 cups | 375 g | 390 g |
| 4 cups (1 lb) | 500 g | 520 g |
Frequently Asked Questions
Why so much variation in 'a cup of flour'?
Flour packs differently. Scooping with the cup compresses flour 10-15% denser than spooning into the cup loosely. Even 'levelling off' produces variation. This is why professional bakers use weight, not volume - even precise volume measurements have ±10% variance.
Should I sift flour before measuring?
Depends on the recipe. 'Sifted flour, then measured' = less flour per cup (115-120 g). 'Measured, then sifted' = full flour amount (125-140 g/cup). Recipe writers often unclear about which order; weight measurement avoids the question entirely.
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