How Many Grams in a Cup of Molasses?
1 cup = 328g · Tablespoon and teaspoon counts are US volume measures (15 ml per tbsp). Liquids should be weighed for accuracy — gram weight per spoon varies by density.
Quick values
- Cups
- 1
- Tablespoons
- 16
- Teaspoons
- 48
- Grams per tbsp
- 20.5g
- Grams per tsp
- 6.833333g
- Grams
- 328
- Ounces
- 11.569869
- Pounds
- 0.723117
Molasses cups to grams conversion table
| Cups | Tablespoons | Teaspoons | Grams | Ounces |
|---|---|---|---|---|
| 1/4 | 4 | 12 | 82g | 2.892467 |
| 1/3 | 5.333333 | 16 | 109.333333g | 3.856623 |
| 1/2 | 8 | 24 | 164g | 5.784934 |
| 2/3 | 10.666667 | 32 | 218.666667g | 7.713246 |
| 3/4 | 12 | 36 | 246g | 8.677402 |
| 1 | 16 | 48 | 328g | 11.569869 |
| 1.5 | 24 | 72 | 492g | 17.354803 |
| 2 | 32 | 96 | 656g | 23.139738 |
Each US tablespoon ≈ 20.5g · Each US teaspoon ≈ 6.833333g
About Molasses measurements
Molasses is a thick byproduct of sugar refining, ranging from light to blackstrap with increasing intensity and decreasing sweetness. One US cup weighs approximately 328 grams—similar to corn syrup and heavier than maple syrup. Its viscosity and density make volume measuring tricky without proper technique.
Measure molasses in a liquid cup or by weight, using oil-sprayed utensils so the sticky syrup releases fully. Blackstrap molasses is slightly denser but 328 grams per cup remains the practical home-kitchen standard for unsulphured baking molasses used in gingerbread and cookies.
Errors include using blackstrap when recipes call for mild molasses—the flavor overwhelms and acidity affects leavening. Substituting molasses for honey without adjusting baking soda levels causes off flavors because molasses is more alkaline. Pouring cold molasses slowly leads to under-measured cups.
Store molasses in a cool pantry for up to a year opened; refrigeration extends life in warm climates. Substitute dark corn syrup or honey with flavor and color changes. To make brown sugar, blend molasses into granulated sugar rather than measuring molasses alone when only brown sugar is needed.
Molasses contributes acidity and moisture alongside sweetness, so 328 grams per cup affects chemical leavening when paired with baking soda in gingerbread and Boston brown bread. Blackstrap molasses is less sweet and more mineral-heavy than fancy molasses, yet cup weight stays comparable for measuring purposes. Old-fashioned shoofly pie and treacle tart recipes from British sources may list treacle or golden syrup—verify which product the author used because flavor differs more than weight. Weighing molasses for barbecue sauce batches ensures consistent tang across repeated cooks better than sticky cup measures.
Measure molasses by weight when combining with spices for gingerbread spice mixes you store premixed—sticky cup residue leaves behind measurable sugar that throws off small-batch spice ratios and dulls cinnamon pop over time in the jar.
Frequently asked questions
One US cup of molasses equals 328 grams. Blackstrap may be marginally denser but 328g is the standard baking conversion.
Use a liquid measuring cup or weigh 328g. Oil the cup first and pour at room temperature for complete release.
Dark corn syrup, honey, or maple syrup substitute with flavor changes. For brown sugar flavor, use packed brown sugar at 220g per cup.
Keep sealed in a cool pantry. Refrigerate in hot climates. Unopened molasses lasts years; use opened jars within 12 months.