Are plain flour and All-Purpose Flour the same thing?

Yes. All-Purpose Flour is another name for plain flour, so they are the same ingredient and measure identically. A cup of plain flour weighs 140 grams under either name, and every conversion on this page holds whichever name your recipe uses. Recipes swap the two freely, so you can follow either without changing quantities or weighing any differently.

Why does a cup of flour vary in weight?

Flour compresses easily, so how you fill the cup changes the weight. Spooned lightly and levelled, a metric cup of plain flour is about 140 grams. Sifted first it can fall to around 125 grams, while scooping straight from the bag and packing it down can push it to 160 grams. For consistent baking, weigh flour on a scale rather than measuring by cup.

What is 0.25 cups of plain flour in tablespoons?

0.25 cups of plain flour is 4.17 tablespoons. This is the same for any ingredient, since cups and tablespoons are both volume units and do not depend on what you are measuring. One cup is about 16.67 tablespoons, so 0.5 cups is 8.33 tablespoons. Use the volume converter to switch between cups, tablespoons, teaspoons, and millilitres for any amount.

How much does a cup of plain flour weigh?

1 cup of plain flour in grams is 140 grams. The ratio is fixed, so 2 cups is 280 grams and half a cup is 70 grams. Weighing plain flour by the cup is the most common way to measure it for baking. See the full cup to grams chart for plain flour, or use the converter on this page for any other amount.

Convert Plain Flour measurements

Plain Flour Measurement Converter

Use the tool below to convert plain flour from the measurements in your recipe to the measurements that you need.

Plain flour (also known as all-purpose flour) is one of the most commonly used ingredients in baking and cooking. It has a moderate protein content, making it versatile enough for pastries, breads, sauces, and coatings. In the UK, Australia, and New Zealand, it’s called plain flour, while in the US and Canada, it’s known as all-purpose flour.

Since different countries use different measurement systems (and flour can settle when scooped), converting between grams, cups, and tablespoons helps ensure your recipes turn out just right. Use this page to easily convert plain flour for any recipe.

Also known as

All-Purpose Flour

Related Plain Flour Ingredients

Cake flour is softer and lower in protein than plain flour (around 7 to 9% vs 10 to 12%), giving a more tender crumb. It is lighter per cup (130 g vs 140 g); for a quick stand-in when out of cake flour, sift 1 cup of plain flour with 2 tablespoons removed and replaced with cornstarch. See our Cake Flour converter.

Bread flour carries more protein than plain flour (around 12 to 14% vs 10 to 12%), giving stronger gluten and a chewier crumb in yeasted bakes. It is slightly heavier per cup (150 g vs 140 g); swap by weight in pizza, sandwich loaves, and bagels for a more open, chewy texture. See our Bread Flour converter.

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.

Out of plain flour? See plain flour substitutes →

Baking a cake? The tool below sorts your measurements. To mix the batter, a hand mixer does the heavy lifting.

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Plain 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.
Volume Converter Switch between cups, tablespoons, teaspoons and millilitres for any ingredient.
Weight Converter Switch between grams, ounces, pounds and kilograms for any ingredient.

Common Plain Flour Conversions

Here are the most common plain flour conversions from grams to cups.

Grams	Cups
50 g	0.36 cups
100 g	0.71 cups
125 g	0.89 cups
140 g	1 cup
150 g	1.07 cups
175 g	1.25 cups
200 g	1.43 cups
250 g	1.79 cups
280 g	2 cups
300 g	2.14 cups
400 g	2.86 cups
500 g	3.57 cups

Plain Flour Conversion Chart

The conversion chart below gives a quick reference for converting plain flour to different measurements.

grams	cup	ounces	lb	kg	cup(US)	tbsp	tsp
100 g	0.71 cup	3.53 oz	0.22 lb	0.1 kg	0.74 cup (US)	11.9 tbsp	35.71 tsp
150 g	1.07 cup	5.29 oz	0.33 lb	0.15 kg	1.12 cup (US)	17.86 tbsp	53.57 tsp
250 g	1.79 cup	8.82 oz	0.55 lb	0.25 kg	1.86 cup (US)	29.76 tbsp	89.29 tsp
500 g	3.57 cup	17.64 oz	1.1 lb	0.5 kg	3.72 cup (US)	59.52 tbsp	178.57 tsp
750 g	5.36 cup	26.46 oz	1.65 lb	0.75 kg	5.58 cup (US)	89.29 tbsp	267.86 tsp

Frequently Asked Questions

Are plain flour and All-Purpose Flour the same thing?: Yes. All-Purpose Flour is another name for plain flour, so they are the same ingredient and measure identically. A cup of plain flour weighs 140 grams under either name, and every conversion on this page holds whichever name your recipe uses. Recipes swap the two freely, so you can follow either without changing quantities or weighing any differently.
Why does a cup of flour vary in weight?: Flour compresses easily, so how you fill the cup changes the weight. Spooned lightly and levelled, a metric cup of plain flour is about 140 grams. Sifted first it can fall to around 125 grams, while scooping straight from the bag and packing it down can push it to 160 grams. For consistent baking, weigh flour on a scale rather than measuring by cup.
What is 0.25 cups of plain flour in tablespoons?: 0.25 cups of plain flour is 4.17 tablespoons. This is the same for any ingredient, since cups and tablespoons are both volume units and do not depend on what you are measuring. One cup is about 16.67 tablespoons, so 0.5 cups is 8.33 tablespoons. Use the volume converter to switch between cups, tablespoons, teaspoons, and millilitres for any amount. Open the volume converter
How much does a cup of plain flour weigh?: 1 cup of plain flour in grams is 140 grams. The ratio is fixed, so 2 cups is 280 grams and half a cup is 70 grams. Weighing plain flour by the cup is the most common way to measure it for baking. See the full cup to grams chart for plain flour, or use the converter on this page for any other amount. 1 cup plain flour in grams

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