One amount, different ingredients

300 grams to cups

300 grams of all-purpose flour is approximately 2.5 US cups using our 120-gram flour reference. Select another ingredient to see the answer for your recipe.

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Spoon into the cup and level; do not pack

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300 grams of all-purpose flour is about

2.5

US cups

Approximate recipe equivalent for All-purpose flour. Ingredient preparation and measuring technique affect the result.

Reference: 120 g per 236.5882 ml US reference cup. More precision: 2.5 US cups.

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Volume depends on the ingredient and the measuring method. Results crossing weight and volume are recipe estimates.

300 grams, 22 ingredients

The same weight takes up a different amount of space. US reference cup: 236.5882365 ml.

300 grams in US cups by ingredient (approximate recipe equivalents)
Ingredient	Preparation	US cups	Kitchen measure
All-purpose flour	Spoon into the cup and level; do not pack	2.5	2 ½ cups
Bread flour	Dry flour, spooned and levelled	2.5	2 ½ cups
Whole wheat flour	Dry flour, spooned and levelled	2.65	a little under 2 ⅔ cups
Almond flour	Fine almond flour; not almond meal	3.13	3 ⅛ cups
Coconut flour	Dry coconut flour, levelled	2.34	a little over 2 ⅓ cups
Granulated sugar	White granulated sugar, levelled	1.52	a little over 1 ½ cups
Caster sugar	Superfine sugar, levelled	1.58	a little over 1 ½ cups
Packed brown sugar	Light or dark brown sugar, packed	1.41	a little over 1 ⅓ cups
Powdered sugar	Unsifted powdered sugar	2.65	a little under 2 ⅔ cups
Butter	US packaged butter; two 4 oz sticks per US cup. Do not substitute melted for solid butter unless the recipe permits.	1.32	a little under 1 ⅓ cups
Water	Liquid water; approximate room-temperature kitchen density of 1 g/mL	1.27	a little over 1 ¼ cups
Honey	Pourable honey; source tablespoon is normalised using 16 US tablespoons per cup	0.89	about 0.89 cups
Maple syrup	Pourable maple syrup	0.96	a little under 1 cup
Dry long-grain rice	Dry, uncooked long-grain rice; not cooked rice	1.52	a little over 1 ½ cups
Dry rolled oats	Dry old-fashioned or quick oats; not cooked oats or oat flour	3.37	a little over 3 ⅓ cups
Cocoa powder	Unsweetened cocoa, levelled	3.57	a little over 3 ½ cups
Cornstarch	Dry cornstarch, levelled; not coarse cornmeal	2.68	a little over 2 ⅔ cups
Peanut butter	Smooth spoonable peanut butter; stir separated oil in first	1.11	a little under 1 ⅛ cups
Chocolate chips	Regular chocolate chips; not mini chips	1.76	a little over 1 ¾ cups
Whole almonds	Whole unblanched almonds; not sliced or ground	2.11	a little under 2 ⅛ cups
Chopped walnuts	Chopped walnuts; not whole walnut halves	2.65	a little under 2 ⅔ cups
Unsweetened shredded coconut	Unsweetened shredded coconut; not flakes or desiccated coconut	5.66	a little under 5 ⅔ cups

Other amounts

The same comparison for other common recipe weights.

There is no single 300-gram cup value

A cup describes space, not weight. This page compares the same 300-gram amount across every supported ingredient and keeps the selected ingredient visible beside the result. Honey, oats and flour occupy very different volumes at 300 grams.

Work it out from the reference

Divide 300 by the grams in one cup of your ingredient. For the default flour reference, the calculation is 300 ÷ 120 = 2.5 US cups. Keep the unrounded result while calculating and round only what you display.

Metric and Australian cups hold 250 ml instead of 236.5882365 ml, so switching the cup system gives a slightly smaller number of cups for the same weight.

Measure the portion you need

A scale can weigh 300 grams directly, which is the most reliable option. If you are using cups, the decimal is an estimate based on the selected reference; the kitchen fraction in the table is marked as approximate whenever it is not exact.

A few useful answers

Kitchen questions, answered.

Is 300 grams the same for every ingredient?

No. 300 grams of all-purpose flour is about 2.5 US cups, while the same weight of a denser ingredient such as honey fills far less of a cup. Always convert with the ingredient your recipe names.

Does 300 g mean 300 ml?

No. Grams measure mass and millilitres measure volume. They are only numerically close for an ingredient whose density is near 1 gram per millilitre, such as water.

Can I change 300 grams to another amount?

Yes. Edit the amount in the calculator; the ingredient comparison table below stays fixed at 300 grams as a reference.

Sources behind the numbers

King Arthur Baking ingredient weight chart

Sources checked September 25, 2026. Ingredient values are recipe equivalents, not laboratory densities.