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Unsalted butter: weights & conversions

A US cup of unsalted butter weighs about 227 g. 100 g is 717 calories and 0.85 g of protein.

Also written as: sweet butter, sweet cream butter.

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1 cup of unsalted butter is about 227 grams.

Cups to grams

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

unsalted butter volume conversions
VolumeGramsOunces
1 cup227 g8.01 oz
3/4 cup170 g
2/3 cup151 g
1/2 cup114 g
1/3 cup75.7 g
1/4 cup56.8 g
1 tablespoon14.2 g
1 teaspoon4.73 g

Ounces and pounds

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

unsalted butter 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 unsalted butter by measure
MeasureCaloriesProteinFatCarbsFiberSodium
Per 100 g (100 g)7170.85 g81.1 g0.06 g0 g11 mg
Per cup (227 g)16281.93 g184 g0.14 g0 g25 mg
Per tablespoon (14.2 g)1020.12 g11.5 g0.01 g0 g2 mg
Per 4 oz (113 g)8130.96 g92 g0.07 g0 g12 mg

If you have run out

  • Salted butter with a quarter teaspoon less salt per half cup added elsewhere in the recipe.

Free recipes that use unsalted butter

From our starter library — free to read, free to save into your own cookbook.

Mentioned in our guides

Blog posts that talk about unsalted butter along the way.

Common questions

How many grams are in a cup of unsalted butter?
One US cup of unsalted butter weighs about 227 g (8.01 oz). A tablespoon is about 14.2 g and a teaspoon about 4.73 g.
How many cups is 100 g of unsalted butter?
100 g of unsalted butter is about 0.44 cups — near enough to 1/2 of a cup in a measuring cup.
How many calories are in unsalted butter?
Unsalted butter has about 717 calories per 100 g, which works out to roughly 1628 calories a cup.
What can I use instead of unsalted butter?
Salted butter with a quarter teaspoon less salt per half cup added elsewhere in the recipe.

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