Grams to Cups: Corn Syrup
If your recipe is written in cups but your scale reads grams — or the other way round — this page solves the conversion for corn syrup. One cup of corn syrup weighs about 328 grams, which works out to a density of 1.39 g/ml. From there, half a cup is roughly 164 g, a quarter cup about 82 g, and one tablespoon about 21 g.
Converting between weight and volume depends on density, and density is specific to each ingredient: a cup of corn syrup does not weigh the same as a cup of flour or sugar. That is why this tool uses the measured density of corn syrup, taken from the USDA FoodData Central database, rather than a one-size-fits-all figure.
Cooking measurement converter — Corn Syrup
Result
0.305 cups
Common measures — Corn Syrup
| Measure | Grams |
|---|---|
| 1 cup | 328 g |
| ¾ cup | 246 g |
| ½ cup | 164 g |
| ⅓ cup | 109 g |
| ¼ cup | 82 g |
| 1 tbsp | 21 g |
| 1 tsp | 6.8 g |
Data source: USDA FoodData Central
How to measure corn syrup accurately
For corn syrup, spoon or pour it into the cup and level the top. Brown sugar is the exception — pack it down firmly into the cup unless the recipe says otherwise, because it traps air and would otherwise come up short on weight.
Weighing in grams removes any doubt about how firmly the sugar is packed, which is especially helpful in delicate recipes.
Frequently asked questions
How many grams are in a cup of corn syrup?
One cup of corn syrup weighs about 328 grams. Half a cup is roughly 164 grams and a quarter cup about 82 grams.
How many cups is 100 grams of corn syrup?
100 grams of corn syrup is about 0.30 cups. Use the calculator above for any other amount.
Where does this value come from?
From the ingredient's measured density (1.39 g/ml), referenced to the USDA FoodData Central database. Bear in mind the real weight can vary slightly with brand and moisture.
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