Convert Molasses from Cup (US) to Grams

How many grams is 1 US cup of molasses?

1 US cup of molasses (blackstrap molasses) is 326.4 grams. 2 US cups of molasses is 652.8 grams. 1/2 US cup of molasses is 163.2 grams. 1/4 US cup (0.25 US cup) of molasses is 81.6 grams. Use the converter below for any amount.

  • These figures use the US cup (240 ml), so 1 cup is 326.4 g. A metric cup is slightly larger at 250 ml and holds about 340 g. Use the metric cup converter →
  • Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →

Molasses is a thick, dark syrup produced as a byproduct of refining cane sugar into white crystals. When a recipe calls for it by weight, one metric cup (250 ml) is around 340 grams or 12 ounces. Its bittersweet depth gives gingerbread, treacle tart, and dark rye bread their distinctive flavour.

Molasses clings to measuring cups and spoons, so weighing in grams gives a more reliable result. Pour it directly onto a scale for the cleanest measurement.

Also known as

  • blackstrap molasses
  • treacle

Honey and molasses are both thick liquid sweeteners and close in weight (honey 350 g, molasses 340 g per cup), but honey is golden and floral while molasses is dark and bittersweet. Use them interchangeably only in recipes that can handle the strong, distinctive flavour of molasses. See what 1 US cup of honey is in grams.

Golden syrup is slightly heavier (350 g vs 340 g per cup) and has a mild buttery toffee taste, while molasses is darker and more bitter. They are not a clean 1:1 swap in flavour-sensitive bakes; weigh and expect a milder, sweeter result from golden syrup. See what 1 US cup of golden syrup is in grams.

Maple syrup is lighter (325 g vs 340 g per cup) and thinner with a delicate caramel taste, while molasses is dense and bittersweet. Swap only in recipes that can handle a much stronger, darker flavour. See what 1 US cup of maple syrup is in grams.

Brown sugar is made by mixing white sugar with molasses, so the two are closely related in flavour. In some recipes you can replace a portion of brown sugar with a smaller amount of molasses, though the texture will change as molasses adds moisture without bulk. See what 1 US cup of brown sugar is in grams.

Palm sugar is a dry, granulated sweetener with earthy, caramel notes that come partly from the same compounds molasses contributes to other sugars. It is not a direct liquid substitute, but the two share a similar flavour role in dark, spiced bakes. See what 1 US cup of palm sugar is in grams.

Parisian essence is a thinner caramel browning liquid, much lighter than molasses (230 g vs 340 g per cup). Use it to deepen the colour and add a malty note to cakes and gravies. See what 1 US cup of parisian essence is in grams.

Out of molasses? See molasses substitutes →

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Molasses Measurement Converter

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Result

326.4 Grams

Common Molasses Conversions

Here are the most common molasses conversions from cups (US) to grams.

Cups (US)Grams
0.25 cups (US)81.6 g
0.5 cups (US)163.2 g
0.75 cups (US)244.8 g
1 cup (US)326.4 g
1.25 cups (US)408 g
1.5 cups (US)489.6 g
2 cups (US)652.8 g
2.5 cups (US)816 g
3 cups (US)979.2 g

Molasses Conversion Chart

The conversion chart below gives a quick reference for converting molasses from Cup (US) to Grams and other measurements.

cup(US)gramscupouncestbsptspmlfl oz
0.25 cup (US)81.6 g0.24 cup2.88 oz4 tbsp12 tsp60 ml2.03 fl oz
0.5 cup (US)163.2 g0.48 cup5.76 oz8 tbsp24 tsp120 ml4.06 fl oz
1 cup (US)326.4 g0.96 cup11.52 oz16 tbsp48 tsp240 ml8.12 fl oz
2 cup (US)652.8 g1.92 cup23.04 oz32 tbsp96 tsp480 ml16.23 fl oz

For the reverse conversion, see 100 grams of molasses in US cups.

Frequently Asked Questions

What is 1 US cup of molasses in grams?
1 US cup of molasses is 326.4 grams. The ratio is fixed, so 2 US cups of molasses is 652.8 grams and 0.5 US cups is 163.2 grams. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the molasses converter
How many grams is 1.5 US cups of molasses?
1.5 US cups of molasses is 489.6 grams. The ratio is fixed, so 1 US cup of molasses is 326.4 grams and 2 US cups is 652.8 grams. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
What is 2 US cups of molasses in grams?
2 US cups of molasses is 652.8 grams. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 US cup of molasses is 326.4 grams, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact grams reading.
How many US cups of molasses is 326.4 grams?
326.4 grams of molasses is 1 US cup. The conversion works the same in reverse, so you can switch between grams and US cups without changing the result. This helps when a recipe lists US cups but you would rather weigh or measure in grams. The converter above and the chart below cover both directions for any amount.
Are molasses and blackstrap molasses the same thing?
Yes. Blackstrap molasses is another name for molasses, so they are the same ingredient and convert identically. 1 US cup of molasses is 326.4 grams under either name, and 2 US cups is 652.8 grams. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
What is 1/2 cup (US) molasses in grams?
1/2 US cup of molasses is 163.2 grams. The ratio is fixed, so 1 US cup of molasses is 326.4 grams and 2 US cups is 652.8 grams. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart below for the common ones.
What is 1/4 cup (US) molasses in grams?
1/4 US cup (0.25 US cup) of molasses is 81.6 grams. The ratio is fixed, so 1 US cup of molasses is 326.4 grams and 2 US cups is 652.8 grams. Quarter amounts often come up when scaling a recipe down step by step, and the figure divides cleanly. Use the converter above for any other quantity, or the chart below for the most common amounts.
Is 1 cup of molasses 340 or 326 grams?
A cup of molasses weighs 340 grams in a metric cup (250 ml) and about 326 grams in a US cup (240 ml), since the metric cup holds a little more. Most US recipes mean the US cup, while UK, Australian, and European recipes use the metric cup. The difference is small but worth checking when a recipe is precise. Weigh on a scale for the most reliable result.

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