Sugars and syrups
Molasses: Cups to Grams
One US cup of molasses weighs 340 g, which is 12 oz, by the King Arthur Baking ingredient weight chart. A tablespoon is 21.3 g and a teaspoon 7.08 g. A 250 ml metric cup holds 359 g. To go the other way, 100 g of molasses is 1/4 cup plus 2 teaspoons.
Weight
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Molasses conversion chart
| Measure | Grams | Ounces |
|---|---|---|
| 1 teaspoon | 7.08 g | 0.25 oz |
| 1 tablespoon | 21.3 g | 0.75 oz |
| 1/8 cup | 42.5 g | 1.5 oz |
| 1/4 cup | 85 g | 3 oz |
| 1/3 cup | 113 g | 4 oz |
| 1/2 cup | 170 g | 6 oz |
| 2/3 cup | 227 g | 8 oz |
| 3/4 cup | 255 g | 8.99 oz |
| 1 cup | 340 g | 12 oz |
| 1 1/2 cups | 510 g | 18 oz |
| 2 cups | 680 g | 24 oz |
| 3 cups | 1,020 g | 36 oz |
| 4 cups | 1,360 g | 48 oz |
Grams of molasses to cups
| Weight | Cups, decimal | Nearest kitchen measure |
|---|---|---|
| 25 g | 0.07 | 1 tablespoon plus 1/2 teaspoon |
| 50 g | 0.15 | 2 tablespoons plus 1 teaspoon |
| 75 g | 0.22 | 3 tablespoons plus 1 1/2 teaspoons |
| 100 g | 0.29 | 1/4 cup plus 2 teaspoons |
| 125 g | 0.37 | 1/3 cup plus 1 3/4 teaspoons |
| 150 g | 0.44 | 1/3 cup plus 1 tablespoon plus 2 1/4 teaspoons |
| 200 g | 0.59 | 1/2 cup plus 1 tablespoon plus 1 1/4 teaspoons |
| 250 g | 0.74 | 2/3 cup plus 1 tablespoon plus 1/4 teaspoon |
| 500 g | 1.47 | 1 1/3 cups plus 2 tablespoons plus 1/2 teaspoon |
Where the figure comes from
The weight on this page is from the King Arthur Baking ingredient weight chart, which lists molasses as 1/4 cup = 85 g. Scaled to one US cup of 236.59 ml, that is 340 g. Every other number on the page is that figure multiplied or divided.
grams = cups x 340
cups = grams / 340
For example, 1 1/2 cups of molasses is 1.5 x 340 = 510 g, and 300 g is 300 / 340 = 0.88 cups.
How molasses compares by the cup
A cup measures volume, so its weight depends on what fills it. A cup of molasses is 49.8 percent heavier than a cup of water (227 g). It is 183 percent heavier than a cup of all-purpose flour (120 g).
Other sugars and syrups from the same chart, per US cup:
- Honey: 336 g, 4 g less than molasses
- Maple syrup: 312 g, 28 g less than molasses
- Corn syrup: 312 g, 28 g less than molasses
- Brown sugar, packed: 213 g, 127 g less than molasses
- Granulated sugar: 198 g, 142 g less than molasses
- Powdered sugar, unsifted: 113 g, 227 g less than molasses
US cup or metric cup
A US cup is 236.59 ml and a metric cup, used in Australia, New Zealand and Canada, is 250 ml. The metric cup is 5.7 percent larger, so it holds 359 g of molasses against 340 g. Tablespoons and teaspoons on this page are US spoons. The calculator above has a switch for the cup size.
Frequently asked questions
How many grams is 1 cup of molasses?
340 g, or 12 oz, for a US cup of 236.59 ml. A metric cup of 250 ml holds 359 g.
How many grams is a tablespoon of molasses?
21.3 g. A teaspoon is 7.08 g. There are 16 tablespoons in a US cup, so the figure is the cup weight of 340 g divided by 16.
How many cups is 100 grams of molasses?
1/4 cup plus 2 teaspoons: 100 g divided by 340 g per cup is 0.29 cup. 250 g is 0.74 cups.
How many grams is half a cup of molasses?
170 g. A quarter cup is 85 g and a third of a cup is 113 g.