All-Purpose Flour: US Cups to Grams (g) & Ounces (oz) Conversion
Convert volumes of all-purpose flour (plain flour) measured in US cups to their approximate weight in metric grams (g) and imperial/US ounces (oz).
Crucial for consistent baking results, as flour density can vary.
US Cups (All-Purpose Flour)
Grams (g) (approx.)
Ounces (oz) (approx.)
1/8 cup
15-16 g
0.53-0.56 oz
1/4 cup
30-32 g
1.06-1.13 oz
1/3 cup
40-43 g
1.41-1.52 oz
1/2 cup
60-64 g
2.12-2.26 oz
2/3 cup
80-85 g
2.82-3.00 oz
3/4 cup
90-96 g
3.17-3.39 oz
1 cup
120-128 g
4.23-4.52 oz
1 1/2 cups
180-192 g
6.35-6.77 oz
2 cups
240-256 g
8.47-9.03 oz
Important Considerations for Flour:
The weight of 1 US cup of all-purpose flour can vary. A common standard is **120-125 grams per cup** (approx. 4.25-4.4 ounces) when using the "spoon and level" method (fluff flour, spoon into cup, level off without packing).
Some sources may use up to 130g or more per cup if flour is scooped directly or packed.
This chart provides a common range. For utmost baking accuracy, **using a kitchen scale to measure flour by weight (grams or ounces) is highly recommended.**
"Plain flour" is the common term in the UK and Australia for all-purpose flour.