How Many Grams in a Cup of Molasses? (328 g)
1 US legal cup of Molasses = 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.
Molasses: 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 Molasses Converter
Type any amount or choose a unit to calculate instant weights and volumes
Why the Weight of Molasses Varies in Baking
Molasses 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
Molasses is highly viscous. Lightly oil the measuring cup or weigh directly into the mixing bowl on a tared gram scale.
Atmospheric Altitude Context
At 5280 ft elevation, lower atmospheric pressure accelerates moisture evaporation. Ensure Molasses is measured strictly by weight (328g/cup) rather than volume scoop to prevent baking inconsistencies.
International Cup Size Weights for Molasses
Standard cup volumes vary between countries. If following a UK, Australian, or Canadian recipe, use these computed gram equivalents for Molasses:
| 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 Molasses
Is Molasses supposed to be packed or loose when measuring?
Molasses 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 Molasses weigh more than a cup of flour?
Molasses 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 Molasses are in a tablespoon and teaspoon?
One level tablespoon of Molasses weighs 20.5 grams, and one level teaspoon weighs 6.83 grams. 1 US cup contains 16 tablespoons.
Can I reduce Molasses 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 Molasses?
Molasses 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
Exact 100% agreement between USDA SR Legacy and King Arthur Baking standards: 1 cup = 328g (1 tbsp = 20.5g).