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Sugars & syrups

Molasses: weights & conversions

A US cup of molasses weighs about 337 g. 100 g is 290 calories and 0 g of protein.

Also written as: blackstrap molasses.

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1 cup of molasses is about 337 grams.

Cups to grams

What each measure of molasses weighs, from the cup weight above.

molasses volume conversions
VolumeGramsOunces
1 cup337 g11.9 oz
3/4 cup253 g
2/3 cup225 g
1/2 cup169 g
1/3 cup112 g
1/4 cup84.3 g
1 tablespoon21.1 g
1 teaspoon7.02 g

Ounces and pounds

The weights an older recipe card is most likely to use.

molasses weight conversions
WeightGramsOunces
1 oz28.3 g
4 oz (1/4 lb)113 g
8 oz (1/2 lb)227 g
1 lb454 g
100 g100 g

Nutrition

Per 100 g of edible portion, transcribed from USDA reference data, and scaled to the measures above.

Nutrition for molasses by measure
MeasureCaloriesProteinFatCarbsFiberSodium
Per 100 g (100 g)2900 g0.1 g74.7 g0 g37 mg
Per cup (337 g)9770 g0.34 g252 g0 g125 mg
Per tablespoon (21.1 g)610 g0.02 g15.7 g0 g8 mg
Per 4 oz (113 g)3290 g0.11 g84.7 g0 g42 mg

If you have run out

  • Dark corn syrup or honey, measure for measure.

Common questions

How many grams are in a cup of molasses?
One US cup of molasses weighs about 337 g (11.9 oz). A tablespoon is about 21.1 g and a teaspoon about 7.02 g.
How many cups is 100 g of molasses?
100 g of molasses is about 0.3 cups — near enough to 1/4 of a cup in a measuring cup.
How many calories are in molasses?
Molasses has about 290 calories per 100 g, which works out to roughly 977 calories a cup.
What can I use instead of molasses?
Dark corn syrup or honey, measure for measure.

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