Convert Plain Flour from Cup (US) to Grams
How many grams is 1 US cup of plain flour?
1 US cup of plain flour (All-Purpose Flour) is 134.4 grams. 2 US cups of plain flour is 268.8 grams. 1/2 US cup of plain flour is 67.2 grams. 1/4 US cup (0.25 US cup) of plain flour is 33.6 grams. Use the converter below for any amount.
- These figures use the US cup (240 ml), so 1 cup is 134.4 g. A metric cup is slightly larger at 250 ml and holds about 140 g. Use the metric cup converter →
- Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →
- Flour settles, so a cup's weight depends on how it is filled. This page uses 140 g for a metric cup spooned and levelled. Sifted it can drop to about 125 g; scooped and packed it can reach 160 g. Weigh for the most reliable result.
More about measuring Plain Flour
Plain Flour substitutes
Ran out? What to use instead of plain flour →
No measuring cups? The tool below gets you close, and a measuring cup set keeps every batch the same.
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134.4 GramsPlain Flour Calculators & Baking Tools
Working with plain flour? These tools handle the jobs a converter cannot.
- Self-Raising Flour Calculator Turn plain flour into self-raising with the right baking powder and salt.
- Pan Size Converter Rescale a recipe for a different cake tin size.
- Oven to Air Fryer Converter Match the temperature and time when you swap the oven for an air fryer, fan oven, or slow cooker.
- Recipe Scaler Scale any recipe up or down and keep every ingredient in ratio.
Common Plain Flour Conversions
Here are the most common plain flour conversions from cups (US) to grams.
| Cups (US) | Grams |
|---|---|
| 0.25 cups (US) | 33.6 g |
| 0.5 cups (US) | 67.2 g |
| 0.75 cups (US) | 100.8 g |
| 1 cup (US) | 134.4 g |
| 1.25 cups (US) | 168 g |
| 1.5 cups (US) | 201.6 g |
| 2 cups (US) | 268.8 g |
| 2.5 cups (US) | 336 g |
| 3 cups (US) | 403.2 g |
For cups to grams with a different ingredient, use the cups to grams converter for a quick-reference table.
For the reverse conversion, see 100 grams of plain flour in US cups.
Frequently Asked Questions
- What is 1 US cup of plain flour in grams?
- 1 US cup of plain flour is 134.4 grams. The ratio is fixed, so 2 US cups of plain flour is 268.8 grams and 0.5 US cups is 67.2 grams. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the plain flour converter
- How many grams is 1.5 US cups of plain flour?
- 1.5 US cups of plain flour is 201.6 grams. The ratio is fixed, so 1 US cup of plain flour is 134.4 grams and 2 US cups is 268.8 grams. Type any other amount into the converter above for the exact figure, or use the chart above for the common ones.
- What is 2 US cups of plain flour in grams?
- 2 US cups of plain flour is 268.8 grams. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 US cup of plain flour is 134.4 grams, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact grams reading.
- How many US cups of plain flour is 134.4 grams?
- 134.4 grams of plain flour is 1 US cup. The conversion works the same in reverse, so you can switch between grams and US cups without changing the result. This helps when a recipe lists US cups but you would rather weigh or measure in grams. The converter above and the chart above cover both directions for any amount.
- What is 1/2 cup (US) plain flour in grams?
- 1/2 US cup of plain flour is 67.2 grams. The ratio is fixed, so 1 US cup of plain flour is 134.4 grams and 2 US cups is 268.8 grams. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart above for the common ones.
Related to Plain Flour
Bread Flour
A straight swap with more protein (150 g vs 140 g per cup), so gluten develops further and the crumb turns chewier. Good in pizza, bagels, and rustic loaves; in delicate cakes it can read tough, so reserve it for bakes that want structure. See our Bread Flour converter.
Cake Flour
The tender-crumb swap: cake flour is softer and lower in protein, 7 to 9% against 10 to 12%, giving a finer, lighter result in sponges and cupcakes (130 g vs 140 g per cup). Avoid it for bread and pizza, where the weaker gluten leaves the dough slack. No cake flour on hand? Take 2 tablespoons out of a cup of plain flour and replace them with cornstarch. See our Cake Flour converter.
Brown Sugar
Brown sugar is pressed into its cup while plain flour is spooned in and levelled, which is how one ends up at 220 g and the other at 140 g. Reading a cookie recipe as if both cups were filled the same way is the usual reason the dough turns out wet or sandy. See our Brown Sugar converter.
Self Raising Flour
Self-raising flour is plain flour with baking powder already blended in, matched in weight per cup (140 g each). Use the self-raising flour calculator to make your own from plain flour, or swap to plain flour and add your own leavener. See our Self Raising Flour converter.
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