How Many Grams in a Cup of Light Corn Syrup? (328 g)
1 US legal cup of Light Corn Syrup = 328 grams (11.57 ounces). One tablespoon = 20.5 grams, and one teaspoon = 6.83 grams.
Portion baseline measured as 1 cup according to official USDA laboratory reference testing.
Light Corn Syrup: Fractional Cup to Grams Conversion Table
| Portion / Fraction | Grams (g) | Ounces (oz) | Equivalent Tablespoons |
|---|---|---|---|
| 1/8 cup | 41 g | 1.45 oz | 2 tbsp |
| 1/4 cup | 82 g | 2.89 oz | 4 tbsp |
| 1/3 cup | 109.3 g | 3.86 oz | 5.3 tbsp |
| 1/2 cup | 164 g | 5.79 oz | 8 tbsp |
| 2/3 cup | 218.7 g | 7.71 oz | 10.7 tbsp |
| 3/4 cup | 246 g | 8.68 oz | 12 tbsp |
| 1 cup | 328 g | 11.57 oz | 16 tbsp |
| 1 1/2 cups | 492 g | 17.36 oz | 24 tbsp |
| 2 cups | 656 g | 23.14 oz | 32 tbsp |
| 3 cups | 984 g | 34.71 oz | 48 tbsp |
| 4 cups | 1312 g | 46.28 oz | 64 tbsp |
Interactive Light Corn Syrup Converter
Type any amount or choose a unit to calculate instant weights and volumes
Why the Weight of Light Corn Syrup Varies in Baking
Light Corn Syrup is a viscous liquid whose flow rate depends heavily on ambient temperature. It does not compress, but clinging residue on measuring spoons can cause significant measurement loss unless weighed directly into the recipe bowl.
Sugars & Sweeteners Measuring Technique
Pour into liquid measuring cup and view at eye level. Used as an invert sugar to prevent crystallization in candies, caramels, and glazes.
Atmospheric Altitude Context
At 5280 ft elevation, lower atmospheric pressure accelerates moisture evaporation. Ensure Light Corn Syrup is measured strictly by weight (328g/cup) rather than volume scoop to prevent baking inconsistencies.
International Cup Size Weights for Light Corn Syrup
Standard cup volumes vary between countries. If following a UK, Australian, or Canadian recipe, use these computed gram equivalents for Light Corn Syrup:
| Standard Cup Standard | Volume (mL) | Calculated Grams (g) | Ounces (oz) | Primary Geographic Region |
|---|---|---|---|---|
| US Legal Cup (USDA Standard) | 240 mL | 328 g | 11.57 oz | United States (FDA nutrition labeling) |
| US Customary Cup | 236.6 mL | 323.3 g | 11.4 oz | United States (Standard kitchen measuring sets) |
| Metric Cup | 250 mL | 341.7 g | 12.05 oz | Australia, New Zealand, Canada, South Africa, UK |
| Imperial Cup | 284.1 mL | 388.3 g | 13.7 oz | Traditional British & Commonwealth recipes (1/2 pint) |
Related Sugars & Sweeteners Conversions
Frequently Asked Questions About Light Corn Syrup
Is Light Corn Syrup supposed to be packed or loose when measuring?
Light Corn Syrup is a dense liquid sweetener that should never be packed. Measure it in a liquid measuring cup at eye level or weigh it on a digital scale (328g per cup; 20.5g per tablespoon).
Why does a cup of Light Corn Syrup weigh more than a cup of flour?
Light Corn Syrup has a much higher physical density (328g/cup) than wheat flour (~120–125g/cup). Sugar granules or syrup liquids are dense with minimal trapped air space, whereas flour particles are light and aerated.
How many grams of Light Corn Syrup are in a tablespoon and teaspoon?
One level tablespoon of Light Corn Syrup weighs 20.5 grams, and one level teaspoon weighs 6.83 grams. 1 US cup contains 16 tablespoons.
Can I reduce Light Corn Syrup in a baking recipe without ruining the texture?
Sugar provides far more than sweetness in baking: it tenderizes gluten networks, locks in baked moisture, promotes golden crust caramelization, and stabilizes whipped egg structures. Reducing sugar by more than 10–15% by weight can cause cakes to bake dry, breads to brown poorly, and cookies to lose their crisp edges.
How does humidity affect storing and measuring Light Corn Syrup?
Light Corn Syrup is naturally hygroscopic, meaning it absorbs moisture from surrounding air. In high humidity, granulated sugars clump and brown sugars become sticky. Keep sugars in airtight containers to maintain proper moisture balance and predictable weight.
Authoritative Laboratory Citation: USDA SR Legacy
Standard glucose syrup with vanilla flavor. USDA SR Legacy specifies 328g/cup; King Arthur lists 312g.