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½ cup of brown sugar in grams

½ cup of brown sugar = 107 g
3.77 oz · 118 ml of volume

0.5 cups × 213 g per cup = 107 g

A cup of brown sugar weighs 213 g, so ½ cup of it comes to 107 g. That figure is particular to brown sugar: a cup is a volume and a gram is a mass, and the only thing connecting them is how heavy the ingredient is for its bulk. For comparison, a cup of all-purpose flour is 120 g and a cup of butter is 227 g. The source line is "1 cup packed = 213 g", from King Arthur Baking.

Brown sugar is measured packed: pressed into the cup firmly enough to hold its shape when tipped out. Spooned in loosely it weighs substantially less.

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Result
0.5 cups of brown sugar, packed ≈ 107 g (3.8 oz)
Weight
106.5 g
Cups
0.5 cup
Tablespoons
8 tbsp
Teaspoons
24 tsp
Milliliters
118.3 mL
Fluid ounces
4 fl oz
Assumptions
  • US customary cup (236.6 mL); spooned-and-levelled dry ingredients.
  • Weights are typical values and vary a few percent by brand, humidity and packing.
Grams per cup, ½ cup, ¼ cup and tablespoon
Ingredient1 cup (g)½ cup (g)¼ cup (g)1 tbsp (g)
All-purpose flour12060307.5
Bread flour12060307.5
Cake flour12060307.5
Self-rising flour11357287.1
Whole wheat flour11357287.1
Pastry flour10653276.6
Almond flour9648246
Coconut flour12864328
Rye flour (medium)10653276.6
Spelt flour9950256.2
Semolina flour163824110.2
Cornmeal (whole)13869358.6
Gluten-free all-purpose flour15678399.8
Granulated white sugar198995012.4
Brown sugar, packed2131075313.3
1–15 of 62

Weights are for spooned-and-levelled dry ingredients (King Arthur Baking). Scooping flour straight from the bag packs it and can add 20–30%.

US volume equivalents
MeasureEquals
1 tablespoon3 teaspoons = ½ fl oz = 14.8 mL
¼ cup4 tbsp = 2 fl oz = 59 mL
⅓ cup5⅓ tbsp = 79 mL
½ cup8 tbsp = 4 fl oz = 118 mL
1 cup16 tbsp = 8 fl oz = 237 mL
1 pint2 cups = 473 mL
1 quart4 cups = 946 mL
1 stick of butter½ cup = 8 tbsp = 113 g = 4 oz

Brown sugar: every measure in grams

Brown sugarGrams
1 cup213 g
2 cups426 g
3 cups639 g
½ cup107 g
⅓ cup71 g
¼ cup53 g
⅔ cup142 g
¾ cup160 g
1 tablespoon13.3 g
2 tablespoons27 g
1 teaspoon4.4 g

Weights from King Arthur Baking — Ingredient Weight Chart.

Questions

How many grams is ½ cup of brown sugar?
107 g, or 3.77 oz. A full cup of brown sugar is 213 g.
How many grams are in a cup of brown sugar?
213 g. Source: King Arthur Baking — Ingredient Weight Chart, "1 cup packed = 213 g".
Does it matter how I fill the cup?
Brown sugar is measured packed: pressed into the cup firmly enough to hold its shape when tipped out. Spooned in loosely it weighs substantially less.
Why can't I just use one cups-to-grams number?
Because a cup measures volume and a gram measures mass. A cup of flour is 120 g and a cup of honey is 336 g — nearly three times as much, in the same cup. The conversion is different for every ingredient.

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½ cup of brown sugar = 107 g. Source: https://www.calculateitnow.dev/half-cup-of-brown-sugar-in-grams