Ingredient Weight Converter · sweetener
Molasses: cups to grams
1 cup of molasses weighs 337 grams. Use the converter below for any other amount, or check the quick-reference table.
Molasses baseline: 1 cup = 337 g.
Common amounts
| Cups | Tablespoons | Grams | Ounces (weight) | Milliliters |
|---|---|---|---|---|
| 1/4 cup | 4.0 | 84 g | 2.97 oz | 59 mL |
| 1/3 cup | 5.3 | 112 g | 3.96 oz | 79 mL |
| 1/2 cup | 8.0 | 169 g | 5.94 oz | 118 mL |
| 2/3 cup | 10.7 | 225 g | 7.93 oz | 158 mL |
| 3/4 cup | 12.0 | 253 g | 8.92 oz | 177 mL |
| 1 cup | 16.0 | 337 g | 11.89 oz | 237 mL |
| 1.5 cups | 24.0 | 506 g | 17.83 oz | 355 mL |
| 2 cups | 32.0 | 674 g | 23.77 oz | 473 mL |
| 3 cups | 48.0 | 1011 g | 35.66 oz | 710 mL |
| 4 cups | 64.0 | 1348 g | 47.55 oz | 946 mL |
Why measuring molasses by cup goes wrong
Molasses is the dark, mineral-rich syrup left after sugar has been crystallized out of cane juice. Unsulphured molasses is the baking standard. A cup weighs 337 grams. Blackstrap molasses is the third extraction — bitter, intensely flavored, and best reserved for gingerbread that wants to taste like winter.
Practical tips for working with molasses
To measure molasses without losing half to the side of the cup, oil the measuring cup first or warm the molasses jar in a bowl of hot water for a minute. The thinner viscosity releases cleanly. Always scrape the rubber spatula into the bowl — that last clinging tablespoon is roughly 20 grams of sugar that matters.
Note from this ingredient's record: Use unsulphured for baking. Blackstrap is bitter and meant for gingerbread that wants a strong mineral note, not for cookies.
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