Name: How much is 2/3 cup in grams, liters, ml, oz, and tablespoons & teaspoons?
Uploaded: 2026-01-14T22:52:55.000Z
Duration: 2 min 36 s
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Liters, milliliters, ounces and tablespoons and teaspoons.

Adverbs of degree

Let's clear up a really common kitchen question.

You'll see this measurement everywhere in recipes, but its meaning changes depending on how and what you're measuring.

First, a cup is a unit of volume, not weight.

And for these conversions, we're specifically talking about a standard US cup, not metric or UK measurements.

A standard US cup equals about 237 milliliters.

So when you take 2/3 of a cup, that comes out to roughly 158 milliliters, which is the most direct volume conversion.

If you prefer liters, the math stays the same.

Since liters and milliliters are just different scales of the same volume unit, if you're measuring with spoons, 2/3 of a cup equals 10 tablespoons plus 2 teaspoons.

That's because one full cup contains exactly 16 tablespoons in fluid ounces.

2/3 of a cup is approximately 5.3 fluid ounces.

Remember, fluid ounces measure volume, not weight, so this still doesn't tell us grams.

Since cups measure volume, the weight in grams changes depending on what you're actually putting into the cup.

For water or milk, 2/3 of a cup weighs about 158 grams.

That's because their density is close to 1 gram per milliliter, making the conversion nearly 1 to 1.

2/3 of a cup of flour weighs roughly 85 to 95 grams, depending on how loosely or tightly the flour is packed into the cup.

Two thirds of a cup of sugar comes in at about 130 to 135 grams.

Because the granules pack more densely than flour.

Different ingredients have different densities, so the same cup measurement can weigh very differently.

For the most accurate baking results, always use ingredient specific conversions.

Or even better, use a kitchen scale that removes guesswork and keeps your recipes consistent every time.