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Vegetables

Sweet potato: weights & conversions

A US cup of sweet potato weighs about 133 g. One weighs about 130 g. 100 g is 86 calories and 1.6 g of protein.

Also written as: sweet potatoes, yams.

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1 cup of sweet potato is about 133 grams.

Cups to grams

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

sweet potato volume conversions
VolumeGramsOunces
1 cup133 g4.69 oz
3/4 cup99.8 g
2/3 cup88.7 g
1/2 cup66.5 g
1/3 cup44.3 g
1/4 cup33.3 g
1 tablespoon8.31 g
1 teaspoon2.77 g

Weight per piece

What a recipe means when it counts sweet potato instead of weighing it.

sweet potato count conversions
CountGramsOunces
1 sweet potato130 g4.59 oz
2 sweet potatos260 g
3 sweet potatos390 g
4 sweet potatos520 g
6 sweet potatos780 g
12 sweet potatos1560 g

Ounces and pounds

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

sweet potato 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 sweet potato by measure
MeasureCaloriesProteinFatCarbsFiberSodium
Per 100 g (100 g)861.6 g0.05 g20.1 g3 g55 mg
Per cup (133 g)1142.13 g0.07 g26.7 g3.99 g73 mg
Per tablespoon (8.31 g)70.13 g0 g1.67 g0.25 g5 mg
Per sweet potato (130 g)1122.08 g0.07 g26.1 g3.9 g72 mg
Per 4 oz (113 g)981.81 g0.06 g22.8 g3.4 g62 mg

Using sweet potato in a recipe?

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If you have run out

  • Butternut squash, in a roast or a mash.

Mentioned in our guides

Blog posts that talk about sweet potato along the way.

Common questions

How many grams are in a cup of sweet potato?
One US cup of sweet potato weighs about 133 g (4.69 oz). A tablespoon is about 8.31 g and a teaspoon about 2.77 g.
How many cups is 100 g of sweet potato?
100 g of sweet potato is about 0.75 cups — near enough to 3/4 of a cup in a measuring cup.
How much does one sweet potato weigh?
One sweet potato weighs about 130 g (4.59 oz), so a pound is roughly 3 of them.
How many calories are in sweet potato?
Sweet potato has about 86 calories per 100 g, which works out to roughly 114 calories a cup.
What can I use instead of sweet potato?
Butternut squash, in a roast or a mash.

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