How many grams is 1 cup of flour?

One cup of all-purpose (plain) flour is 120g when spooned and levelled correctly. If you scoop directly with the cup, you can pack in up to 150–160g, which is why so many bakes using cup measurements turn out dense and dry.

How many grams is 1 cup of sugar?

One cup of granulated or caster sugar is 200g. One cup of icing (powdered) sugar is 120g. One cup of packed brown sugar is 213g.

How many grams is 1 cup of butter?

One cup of butter is 227g, which equals two sticks of American butter or 16 tablespoons.

How many grams is 1 cup of oats?

One cup of rolled oats is 95g. One cup of quick oats is 85g.

Why do cups to grams conversions vary between websites?

Because cups measure volume, not weight, the gram equivalent depends entirely on the ingredient's density. Different sources use slightly different density values, and the way you fill the cup — scooped vs spooned — changes the result significantly. Always use a kitchen scale for precision baking.

How many ml is 1 cup?

One US cup is 240ml. This is the standard used in American recipes. Australian cups are 250ml, and older UK cups were 284ml — but modern UK recipes use grams, not cups.

How many grams is 1 cup of honey?

One cup of honey is 340g. Honey is significantly denser than water, which is why a cup of honey weighs so much more than a cup of milk.

How many grams is a tablespoon?

A tablespoon is 1/16 of a cup. For butter, 1 tablespoon is about 14g. For flour, 1 tablespoon is about 7.5g. For sugar, 1 tablespoon is about 12.5g.

Cups to Grams.
Actually accurate.

A cup of flour is not a cup of sugar. Cups measure volume — grams measure weight. This converter uses real density data for every ingredient, so your measurements are actually correct.

100+ Ingredients Flour, Sugar, Butter Tablespoons & Teaspoons The Mistakes to Avoid

⚡ Most-Searched Conversions

120g

1 cup plain flour
(spooned & levelled)

200g

1 cup caster sugar
(granulated)

227g

1 cup butter
(2 US sticks)

95g

1 cup rolled oats
(porridge oats)

120g

1 cup icing sugar
(powdered sugar)

85g

1 cup cocoa powder
(unsweetened)

340g

1 cup honey
(or treacle)

240ml

1 US cup
(volume reference)

Cups to Grams Converter

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All weights assume the ingredient is spooned into the cup and levelled — not scooped directly. See the gotchas section below for why this matters.

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Full Conversion Tables

Search by ingredient name, or browse by category. All weights are per cup unless stated.

Flours & Starches

Ingredient	1 Cup	½ Cup	¼ Cup	1 Tbsp
Plain flour (all-purpose)	120g	60g	30g	7.5g
Strong flour (bread flour)	120g	60g	30g	7.5g
Self-raising flour	120g	60g	30g	7.5g
Wholemeal flour	120g	60g	30g	7.5g
Cake flour	113g	57g	28g	7g
Almond flour	96g	48g	24g	6g
Coconut flour	128g	64g	32g	8g
Oat flour	92g	46g	23g	5.75g
Rice flour	158g	79g	40g	9.875g
Rye flour	102g	51g	26g	6.375g
Spelt flour	100g	50g	25g	6.25g
Buckwheat flour	120g	60g	30g	7.5g
Semolina	167g	84g	42g	10.4g
Cornflour (cornstarch)	128g	64g	32g	8g
Tapioca flour	120g	60g	30g	7.5g
Chickpea flour	90g	45g	23g	5.6g

Sugars & Sweeteners

Ingredient	1 Cup	½ Cup	¼ Cup	1 Tbsp
Caster sugar (granulated)	200g	100g	50g	12.5g
Icing sugar (powdered)	120g	60g	30g	7.5g
Soft brown sugar (packed)	213g	107g	53g	13.3g
Demerara sugar	200g	100g	50g	12.5g
Coconut sugar	180g	90g	45g	11.25g
Honey	340g	170g	85g	21.25g
Maple syrup	322g	161g	81g	20.1g
Golden syrup	352g	176g	88g	22g
Black treacle (molasses)	340g	170g	85g	21.25g
Agave syrup	336g	168g	84g	21g

Butter, Oils & Fats

Ingredient	1 Cup	½ Cup	¼ Cup	1 Tbsp
Butter	227g	113g	57g	14.2g
Coconut oil	218g	109g	55g	13.6g
Vegetable oil	218g	109g	55g	13.6g
Olive oil	216g	108g	54g	13.5g
Ghee	220g	110g	55g	13.75g
Peanut butter	258g	129g	65g	16.1g
Almond butter	258g	129g	65g	16.1g
Tahini	240g	120g	60g	15g

Dairy & Liquids

Ingredient	1 Cup	½ Cup	¼ Cup	1 Tbsp
Whole milk	242g	121g	61g	15.1g
Buttermilk	242g	121g	61g	15.1g
Double cream (heavy cream)	238g	119g	60g	14.9g
Soured cream	242g	121g	61g	15.1g
Greek yogurt	245g	123g	61g	15.3g
Cream cheese	232g	116g	58g	14.5g
Condensed milk	312g	156g	78g	19.5g
Coconut milk	240g	120g	60g	15g
Water	237g	119g	59g	14.8g

Oats, Grains & Cereals

Ingredient	1 Cup	½ Cup	¼ Cup	1 Tbsp
Rolled oats (porridge oats)	95g	48g	24g	5.9g
Quick oats	85g	43g	21g	5.3g
Breadcrumbs	108g	54g	27g	6.75g
Panko breadcrumbs	60g	30g	15g	3.75g
Quinoa	170g	85g	43g	10.6g
Cornmeal / polenta	138g	69g	35g	8.6g

Nuts, Seeds & Dried Fruit

Ingredient	1 Cup	½ Cup	¼ Cup	1 Tbsp
Whole almonds	142g	71g	36g	8.9g
Walnuts	100g	50g	25g	6.25g
Pecans	99g	50g	25g	6.2g
Hazelnuts	135g	68g	34g	8.4g
Cashews	130g	65g	33g	8.1g
Chocolate chips	170g	85g	43g	10.6g
Chia seeds	160g	80g	40g	10g
Desiccated coconut	80g	40g	20g	5g
Raisins / sultanas	145g	73g	36g	9.1g
Dried cranberries	120g	60g	30g	7.5g
Cocoa powder	85g	43g	21g	5.3g

The Mistakes That Ruin Your Measurements

Cup measurements are imprecise by nature — but some mistakes are worse than others. These are the ones that actually affect your bake.

🥄

Scooping Flour Directly

If you dip the cup into the flour bag and scoop, you compact it. A scooped cup of flour can weigh 150–160g instead of 120g — 30% more than intended. Always spoon flour into the cup and level it off with a knife.

🍚

Not Packing Brown Sugar

Brown sugar must be firmly packed into the cup until it holds its shape when tipped out. Loosely spooned brown sugar gives you 30% less than the recipe intends. If it doesn't hold its shape, pack it harder.

🫙

Treating All Cups as Equal

A US cup is 240ml. An Australian cup is 250ml. An old UK cup was 284ml. If you're using a random mug from your cupboard, your measurements are meaningless. Use a proper measuring cup or just weigh everything.

🍯

Measuring Sticky Liquids in Cups

Honey, golden syrup, and treacle cling to the inside of a cup — you lose a significant amount. Weigh them instead, or lightly oil the cup first so the liquid slides out cleanly.

🧈

Cold Butter in a Cup

Packing cold butter into a cup leaves air gaps. You'll end up with significantly less butter than the recipe needs. Either soften it first, or better yet — just weigh it. 1 cup of butter is always 227g.

🌰

Whole vs Chopped Nuts

A cup of whole walnuts is 100g. A cup of roughly chopped walnuts is around 117g because the pieces pack more densely. When a recipe says "1 cup walnuts", it usually means whole or halved — chop after measuring.

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Cups to Grams.Actually accurate.