Convert Cups to Grams: Light Corn Syrup
Convert cups of light corn syrup to grams with this complete reference table. 1 cup of light corn syrup = 328g (USDA FoodData Central, spooned-and-leveled method). Use the table below for fractions from 1/8 cup up to 4 cups. For precision baking, weight measurements in grams are always more reliable than volume measurements in cups, because light corn syrup density can vary by measuring technique.
Light Corn Syrup Cups to Grams Table
| Cups | Grams |
|---|---|
| 1/8 cup | 41g |
| 1/4 cup | 82g |
| 1/3 cup | 109.3g |
| 1/2 cup | 164g |
| 2/3 cup | 218.7g |
| 3/4 cup | 246g |
| 1 cup | 328g |
| 1 1/4 cups | 410g |
| 1 1/2 cups | 492g |
| 2 cups | 656g |
| 3 cups | 984g |
| 4 cups | 1312g |
Based on USDA FoodData Central data (1 US cup = 240ml = 16 tablespoons = 48 teaspoons). Note: Light corn syrup: 1 cup = 328g. Similar density to honey but slightly lighter. Made from cornstarch. Prevents sugar crystallization in candy making. Dark corn syrup adds molasses flavor. Karo brand most common in the US. USDA FDC 19350.
About Light Corn Syrup Density
The density of light corn syrup determines how much it weighs per unit of volume. At 1.367g/ml, 1 US cup (240ml) of light corn syrup weighs 328g under USDA standard conditions.
Volume measurements can vary by ±10–20% depending on technique (sifted vs. spooned vs. scooped). For consistent baking results, use a kitchen scale with gram measurements whenever possible. The USDA standard (spooned-and-leveled) is the reference point for all values on this page.
Frequently Asked Questions
How many grams is 1 cup of light corn syrup?
1 cup of light corn syrup weighs 328 grams (USDA FoodData Central, spooned-and-leveled method, 1 US cup = 240ml).
How many grams is 1/2 cup of light corn syrup?
1/2 cup of light corn syrup weighs 164 grams.
How many grams is 1/4 cup of light corn syrup?
1/4 cup of light corn syrup weighs 82 grams.
Does measuring technique affect the weight of light corn syrup?
Yes. Sifted light corn syrup can weigh up to 20% less than packed or scooped. The USDA standard (spooned-and-leveled) of 328g/cup is the most reliable baseline.