One US cup of molasses weighs 340 grams. Every other measure is below, in both directions.
1 cup of molasses
340 g
≈ 11.99 oz
Data & method: Density from the King Arthur Baking ingredient weight chart. Every number is checked by an automated test against its source. How we calculate →
| Molasses | Grams | Ounces |
|---|---|---|
| ¼ cup | 85 g | 3 oz |
| ⅓ cup | 113 g | 4 oz |
| ½ cup | 170 g | 6 oz |
| ⅔ cup | 227 g | 8 oz |
| ¾ cup | 255 g | 8.99 oz |
| 1 cup | 340 g | 11.99 oz |
| 1½ cups | 510 g | 17.99 oz |
| 2 cups | 680 g | 23.99 oz |
| 3 cups | 1020 g | 35.98 oz |
| 1 tablespoon | 21 g | 0.75 oz |
| 1 teaspoon | 7.1 g | 0.25 oz |
Working the other way — a recipe in grams, and cups are what you have in the drawer:
| Grams of molasses | Cups (approx.) |
|---|---|
| 50 g | ⅙ cups |
| 100 g | ⅓ cups |
| 125 g | ⅜ cups |
| 200 g | ⅝ cups |
| 250 g | ¾ cups |
| 500 g | 1½ cups |
Preset to molasses — change the amount, units or ingredient to convert anything else.
Result
340 g
Molasses: 340 g per cup
One US cup of molasses weighs 340 grams (about 11.99 ounces). This follows the King Arthur Baking ingredient weight chart, the reference most US test kitchens use.
A tablespoon of molasses is about 21 grams, since one cup holds 16 tablespoons. A teaspoon is about 7.1 grams.
250 grams of molasses is about ¾ cups (250 ÷ 340). Weighing is more reliable than measuring by cup, because how you fill the cup changes the amount.
