All-purpose flour: grams to cups
120 grams of flour fill about one US cup. Enter grams to see cups, or switch the unit to ounces or pounds.
All-purpose flour grams to cups converter
All-purpose flour: 1 US cup ≈ 120 g · source: King Arthur Baking
Cup sizes: US customary cup 236.588 mL (default) · metric cup 250 mL (Australia, Canada, New Zealand) · UK imperial cup 284.13 mL. Pick the cup in the unit list. Weights vary with how the cup is filled.
How it’s calculated
1 US cup of flour ≈ 120 g · 1 tbsp ≈ 7.5 g · 1 metric cup (250 mL) ≈ 126.8 g · 1 UK cup (284 mL) ≈ 144.11 g
US cups = grams ÷ 120
Step by step
- Divide by the weight of one cup: 100 g ÷ 120 g = 0.83333 US cups (about ¾ cup).
Spoon the flour into the cup and level it with a knife. Scooping straight from the bag packs it down, so the cup holds noticeably more flour than the recipe expects. Weighing is more accurate than cups; weights vary with how the cup is packed.
All-purpose flour grams to cups table
| Grams | US cups | Nearest kitchen measure |
|---|---|---|
| 25 g | 0.20833 | about ¼ cup |
| 50 g | 0.41667 | about ½ cup |
| 100 g | 0.83333 | about ¾ cup |
| 125 g | 1.0417 | about 1 cup |
| 150 g | 1.25 | about 1¼ cups |
| 200 g | 1.6667 | about 1⅔ cups |
| 250 g | 2.0833 | about 2⅛ cups |
| 300 g | 2.5 | about 2½ cups |
| 400 g | 3.3333 | about 3⅓ cups |
| 500 g | 4.1667 | about 4⅛ cups |
| 750 g | 6.25 | about 6¼ cups |
| 1000 g | 8.3333 | about 8⅓ cups |
FAQ
Spoon the flour into the cup and level it with a knife. Scooping straight from the bag packs it down, so the cup holds noticeably more flour than the recipe expects.
How do I convert grams of flour to cups?
Divide the grams by 120 (the weight of one US cup of flour). 250 g ÷ 120 = 2.08 cups.
How many grams are in 1 cup of flour?
1 US cup (236.6 mL) of flour weighs about 120 g, according to King Arthur Baking, Ingredient Weight Chart. A 250 mL metric cup holds about 127 g.
How many cups is 100 g of flour?
100 g of flour is about 0.83 US cups, or 13.3 tablespoons.
Why do cup-to-gram conversions for flour vary?
A cup measures volume, not weight. How you fill the cup, humidity and the brand change the weight. Spoon the flour into the cup and level it with a knife. Scooping straight from the bag packs it down, so the cup holds noticeably more flour than the recipe expects.
Is a US cup the same as a UK or metric cup?
No. A US customary cup is 236.6 mL, the metric cup used in Australia, Canada and New Zealand is 250 mL, and the old British imperial cup is 284 mL. Modern UK recipes usually give grams instead.
Sources
- King Arthur Baking, Ingredient Weight Chart: All-Purpose Flour: 1 cup = 4 1/4 oz = 120 g.
- NIST Handbook 44, Appendix C: 1 US cup = 8 US fl oz = 236.5882365 mL; 1 tbsp = 3 tsp.
Checked by Unitglide on 2026-10-27.