GramsToCupsGramsToCups

Protein Powder Grams to Cups

Protein Powder weighs about 120g per cup. Whey and plant-based blends vary by brand — check the label.

Ingredient
Protein Powder
Cup standard
Cups (US Customary)
0.83 ()
Tablespoons
13.3
Teaspoons
40.0
Milliliters
197 ml

Protein Powder Grams to Cups Conversion Table

Protein Powder density: 120g per cup (USDA FoodData Central)

GramsCups (Decimal)Cups (Fraction)Tablespoons
10g0.081.3
25g0.21¼3.3
50g0.426.7
75g0.6310.0
100g0.8313.3
125g1.041⅛16.7
150g1.2520.0
175g1.4623.3
200g1.671⅔26.7
225g1.881⅞30.0
250g2.082⅛33.3
300g2.5040.0
350g2.922⅞46.7
400g3.333⅓53.3
500g4.174⅛66.7

Ingredient Profile

Protein Powder has a density of 120g per cup, based on USDA FoodData Central data. Whey and plant-based blends vary by brand — check the label.

Density can shift with brand, moisture content, or how the ingredient was packed before it reached your kitchen. Weighing on a scale removes that guesswork.

For comparison, honey is denser at 340g per cup, while panko breadcrumbs is lighter at 60g per cup — a reminder that weight per cup varies by ingredient, not by category alone.

0g340g120g per cup

How to Measure Protein Powder in Cups

Spoon into the cup and level off. Ingredients like cocoa powder benefit from a quick sift first to break up clumps.

Baking soda and baking powder should always be measured with a dry measuring spoon, leveled flat — a heaping spoonful of either can meaningfully change how a baked good rises.

If a recipe calls for protein powder by weight instead of volume, a digital kitchen scale set to grams removes any measuring-technique variation entirely — the converter at the top of this page shows both figures side by side so you can check your result either way.

Protein Powder vs Other Dry Goods

Ingredients in the same category don't always share a similar density. Here's how protein powder compares to other dry goods on this site.

IngredientGrams per Cupvs Protein Powder
Protein Powder120gbaseline
Cocoa Powder85g-29%
Cornstarch128g+7%
Table Salt288g+140%
Rolled Oats90g-25%

Common Recipe Uses

How Much Is X Grams of Protein Powder?

Need every amount at once? See the full protein powder conversion chart.

Related Tools

Frequently Asked Questions

How many grams are in a cup of protein powder?+

A cup of protein powder weighs about 120g. Whey and plant-based blends vary by brand — check the label.

How do I measure protein powder accurately?+

Spoon into the cup and level off. Ingredients like cocoa powder benefit from a quick sift first to break up clumps.

Does protein powder's weight per cup ever change?+

Yes, slightly. Whey and plant-based blends vary by brand — check the label. A kitchen scale removes that variation entirely.

What's the best way to convert protein powder from grams to cups?+

Use the converter at the top of this page, or divide your gram amount by 120 to get cups.

Why does protein powder weigh a different amount per cup than other dry goods?+

Even within the same category, particle size, moisture, and packing differ enough to change the weight-per-cup figure by 10-30%. That's why this page uses a value measured specifically for protein powder, not a category-wide average.

Is 120g per cup the same across every brand of protein powder?+

It's close for most brands, though minor milling, processing, or moisture differences can shift the true figure by a few grams. USDA FoodData Central provides the reference value used here.