Sugar & Sweetener Conversion

How Many Grams in a Cup of Corn Syrup?

A cup of corn syrup weighs about 328 grams. Here is the complete cup-to-gram and gram-to-cup conversion table, plus the answer to common volume-to-weight questions for corn syrup.

1 Cup
328g
grams
1 Tablespoon
20g
grams
1 Teaspoon
6.8g
grams

Volume to Grams — Corn Syrup

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

CupsGrams
1/4 cup82 g
1/3 cup109 g
1/2 cup164 g
2/3 cup219 g
3/4 cup246 g
1 cup328 g
1 1/2 cups492 g
2 cups656 g
3 cups984 g
4 cups1312 g
TablespoonsGrams
1 tsp6.7 g
1 tbsp20 g
2 tbsp40 g
3 tbsp60 g
4 tbsp80 g
6 tbsp120 g
8 tbsp160 g
12 tbsp240 g
16 tbsp320 g

Grams to Cups — Corn Syrup

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

GramsCupsTablespoons
25 g0.076 cups1.25 tbsp
50 g0.152 cups2.5 tbsp
75 g0.229 cups3.75 tbsp
100 g0.305 cups5 tbsp
150 g0.457 cups7.5 tbsp
200 g0.61 cups10 tbsp
250 g0.762 cups12.5 tbsp
300 g0.915 cups15 tbsp
500 g1.52 cups25 tbsp
1000 g3.05 cups50 tbsp

Why does corn syrup 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 corn syrup specifically, 1 cup weighs 328g. 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 corn syrup?

1 cup of corn syrup weighs approximately 328 grams.

How many grams in 1 tablespoon of corn syrup?

1 tablespoon of corn syrup weighs approximately 20 grams.

How many grams in 1 teaspoon of corn syrup?

1 teaspoon of corn syrup weighs approximately 6.8 grams.

How many grams are in 1/2 cup of corn syrup?

1/2 cup of corn syrup weighs about 164 grams.

How many grams are in 1/4 cup of corn syrup?

1/4 cup of corn syrup weighs about 82 grams.

How many tablespoons of corn syrup are in 100 grams?

100 grams of corn syrup is about 5 tablespoons.

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