How much is 2/3 cup of butter in grams?

Reviewed by Shree • Last checked October 2026 • How we measure
Instant Answer Standard Cup Weight

2/3 cup of butter weighs 151 grams.

151 grams

≈ 5.33 oz (weight)

Level cup, spooned in (not packed)
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2/3 cup cup of Butter weighs 454 grams.

454 grams ≈ 16 oz

Nearby butter cup measurements

Compare weight conversions for common cup sizes of butter.

Cup Amount Weight (Grams) Weight (Ounces)
1/4 cup 57g 2 oz
1/3 cup 76g 2.7 oz
1/2 cup 114g 4 oz
2/3 cup Current 151g 5.3 oz
3/4 cup 170g 6 oz
1 cup 227g 8 oz
1 1/2 cups 340g 12 oz
2 cups 454g 16 oz

2/3 cup of butter in other units

If a recipe calls for 2/3 cup of butter, here is how that exact quantity converts into other volume and weight measurements:

How to measure butter accurately

Level cup, spooned in (not packed)

Measuring butter by volume using cups can introduce errors up to 20% due to settling, packing pressure, and variations between measuring cup brands. For dependable, professional baking and cooking results, weighing your ingredients in grams with an inexpensive digital kitchen scale eliminates every inconsistency.

Frequently asked questions

How many grams is 2/3 cup of butter?

2/3 cup of butter weighs 151 grams (approximately 5.33 ounces).

How many ounces is 2/3 cup of butter?

2/3 cup of butter weighs approximately 5.33 ounces (151g).

How many cups of butter is 100 grams?

100 grams of butter is approximately 0.44 cups.

How do you accurately measure 2/3 cup of butter?

The most accurate way to measure butter is by weight on a digital kitchen scale (151g). If measuring with cups, spoon the ingredient lightly into the measuring cup and level off flat with a knife without packing.

← See the full Butter cups to grams conversion chart