Sugar & Sweetener Conversion

How Many Grams in a Cup of Light Brown Sugar?

A cup of light brown sugar weighs about 213 grams. Here is the complete cup-to-gram and gram-to-cup conversion table, plus the answer to common volume-to-weight questions for light brown sugar.

1 Cup
213g
grams
1 Tablespoon
13.3g
grams
1 Teaspoon
4.4g
grams
Note: Packed.

Volume to Grams — Light Brown Sugar

Quick reference for the most common amounts. Numbers rounded to the nearest gram.

CupsGrams
1/4 cup53.3 g
1/3 cup71 g
1/2 cup107 g
2/3 cup142 g
3/4 cup160 g
1 cup213 g
1 1/2 cups320 g
2 cups426 g
3 cups639 g
4 cups852 g
TablespoonsGrams
1 tsp4.4 g
1 tbsp13.3 g
2 tbsp26.6 g
3 tbsp39.9 g
4 tbsp53.2 g
6 tbsp79.8 g
8 tbsp106 g
12 tbsp160 g
16 tbsp213 g

Grams to Cups — Light Brown Sugar

Have a recipe in grams and need cups? Use this reverse table.

GramsCupsTablespoons
25 g0.117 cups1.88 tbsp
50 g0.235 cups3.76 tbsp
75 g0.352 cups5.64 tbsp
100 g0.469 cups7.52 tbsp
150 g0.704 cups11.3 tbsp
200 g0.939 cups15 tbsp
250 g1.17 cups18.8 tbsp
300 g1.41 cups22.6 tbsp
500 g2.35 cups37.6 tbsp
1000 g4.69 cups75.2 tbsp

Why does light brown sugar weigh what it weighs?

Sugars vary in density depending on crystal size, moisture content, and whether they are packed. Granulated sugar is dense and uniform; powdered sugar is fluffy and aerated; brown sugar gains weight as it is packed into the cup. Liquid sweeteners like honey are heavier still because water and dissolved sugars take up less space than dry crystals.

For light brown sugar specifically, 1 cup weighs 213g. That is the figure to plug into recipes calling for cup measurements when you want gram precision. ChefVault stores this density (and 118 others) so you never have to look it up twice.

Recipes that originated outside the United States almost always specify weight in grams. Translating these to US cup measurements introduces error in every step. The ChefVault app handles the math automatically — paste a recipe, hit convert, get a clean weight-based version.

Frequently Asked Questions

How many grams are in 1 cup of light brown sugar?

1 cup of light brown sugar weighs approximately 213 grams.

How many grams in 1 tablespoon of light brown sugar?

1 tablespoon of light brown sugar weighs approximately 13.3 grams.

How many grams in 1 teaspoon of light brown sugar?

1 teaspoon of light brown sugar weighs approximately 4.4 grams.

How many grams are in 1/2 cup of light brown sugar?

1/2 cup of light brown sugar weighs about 107 grams.

How many grams are in 1/4 cup of light brown sugar?

1/4 cup of light brown sugar weighs about 53.3 grams.

How many tablespoons of light brown sugar are in 100 grams?

100 grams of light brown sugar is about 7.52 tablespoons.

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