Protein Powder
US Cup to Gram
US Cup (236ml)
94.6g
Metric Cup (250ml)
100.0g
A US cup (236.59ml) of protein powder weighs 95g, while a metric cup (250ml) weighs 100g. That's a 5.7% difference - make sure you know which cup size your recipe uses!
Protein Powder — Quick Reference
Common us cup to gram conversions
| US Cup | Gram |
|---|---|
| ¼ cup | 24g |
| ⅓ cup | 32g |
| ½ cup | 47g |
| ⅔ cup | 63g |
| ¾ cup | 71g |
| 1 cup | 95g |
| 1½ cups | 142g |
| 2 cups | 189g |
Based on protein powder density of 0.4 g/ml (spooned method). Source: USDA FoodData Central.
Understanding Protein Powder Conversions
The Math Behind This Conversion
To convert 1 us cup of protein powder to gram, we use the density of protein powder (0.4 g/ml). A us cup contains 236.59ml, so 1 us cup equals 236.59ml. Multiplying by the density: 236.59ml × 0.4 g/ml = 94.6g.
US vs Metric Cups: Why It Matters
When converting protein powder, the cup size matters significantly. A US cup (236.6ml) of protein powder weighs 95g, while a metric cup (250ml) weighs 100g—a difference of 5g (6%). If you're following a recipe from a different country, using the wrong cup size could affect your results. American recipes use US cups, while recipes from Australia, UK, and most other countries use metric cups.
Measurement Tip
For best results when measuring protein powder, use a kitchen scale. The density of 0.4 g/ml is based on standard measurement conditions, but actual results may vary based on how the ingredient is handled and stored.
About Our Data
The density value of 0.4 g/ml for protein powder is from the USDA FoodData Central database (ID: 173178). This measurement was taken with protein powder spooned into the measuring cup and leveled. Different measurement methods affect the density: packed (0.52 g/ml).