⅔ Cup of Butter in Grams
151 g in a US cup — and what that figure assumes
⅔ cup of butter weighs 151 grams, measured in a US cup.
That figure comes from one number: a full US cup of butter is 227 g. Everything else on this page is that number scaled.
Butter is easiest to measure from the wrapper rather than in a cup. A US stick is 113 g — half a cup — and the wrapper is printed in tablespoons, each 14.2 g.
Whose cup you mean changes the answer. A 250 ml metric cup — the standard in the UK, Australia, New Zealand and Canada — is 5.7% larger than the 236.6 ml US cup, so two thirds of a cup of butter is 160 g there rather than 151 g.
⅔ cup of butter in each cup standard
| Cup standard | Size | Grams | Ounces |
|---|---|---|---|
| US customary | 236.6 ml | 151 g | 5.34 oz |
| Metric (UK, AU, NZ, CA) | 250 ml | 160 g | 5.64 oz |
| Imperial (older UK) | 284 ml | 182 g | 6.41 oz |
A recipe that just says "cups" is almost always American. If yours came from a British, Australian or New Zealand source, take the metric row — on a 151 g measure the gap is 8.6 g.
Halving and doubling butter
Recipes get scaled more often than they get followed exactly. These are the portions of butter a cook actually reaches for, already weighed out.
| Cups | Grams | Ounces | Tablespoons |
|---|---|---|---|
| ¼ cup | 56.8 g | 2.00 oz | 4 |
| ⅓ cup | 75.7 g | 2.67 oz | 5.33 |
| ½ cup | 114 g | 4.00 oz | 8 |
| ⅔ cup | 151 g | 5.34 oz | 10.67 |
| ¾ cup | 170 g | 6.01 oz | 12 |
| 1 cup | 227 g | 8.01 oz | 16 |
| 1½ cups | 341 g | 12.01 oz | 24 |
| 2 cups | 454 g | 16.01 oz | 32 |
| 3 cups | 681 g | 24.02 oz | 48 |
⅔ cup of butter in other units
| Unit | Amount |
|---|---|
| Grams | 151 g |
| Ounces (weight) | 5.34 oz |
| Pounds | 0.334 lb |
| Tablespoons | 10.67 |
| Teaspoons | 32 |
| Millilitres (the space it fills) | 158 ml |
| US sticks | 1.33 |
Salted and unsalted butter weigh the same, so the conversion does not change. Softened or melted butter fills a cup slightly differently, but the weight in the recipe is the weight either way.
Frequently asked questions
How many grams is ⅔ cup of butter?
⅔ cup of butter is 151 grams in a US cup, based on 227 g per full cup. In a 250 ml metric cup it is 160 g.
Is that weighed or measured?
Measured, then weighed on a scale. Butter is easiest to measure from the wrapper rather than in a cup. A US stick is 113 g — half a cup — and the wrapper is printed in tablespoons, each 14.2 g. A scale skips the question, which is why recipes that care about the result give grams.
How many tablespoons is ⅔ cup of butter?
10.67 tablespoons, or 32 teaspoons — 14.19 g per tablespoon for butter.
How many sticks of butter is ⅔ cup?
1.33 US sticks. A stick is 113 g, or ½ cup, and the wrapper is marked in tablespoons at 14.2 g each.
Why do different sites give different grams for ⅔ cup of butter?
Because a cup is a volume and the weight depends on how it was filled, and on whose cup. This site uses 227 g per US cup. Salted and unsalted butter weigh the same, so the conversion does not change. Softened or melted butter fills a cup slightly differently, but the weight in the recipe is the weight either way.