Cocoa Powder Cups to Grams
Cocoa powder can settle or form lumps, so spooning and leveling helps avoid adding extra weight by volume.
Reference measurement
84 grams per US cup
Spoon into a dry US cup and level without packing.
King Arthur Baking lists 1/2 cup unsweetened cocoa as 42 g; normalized to 84 g per US cup. Source note
Lumps, sifting, and compaction can change the volume weight.
Common Cocoa Powder measurements
| US cups | Grams |
|---|---|
| 0.25 US cups | 21 grams |
| 0.333 US cups | 28 grams |
| 0.5 US cups | 42 grams |
| 0.667 US cups | 56 grams |
| 0.75 US cups | 63 grams |
| 1 US cup | 84 grams |
| 1.5 US cups | 126 grams |
| 2 US cups | 168 grams |
Practical examples
- 1/2 US cup = 42 grams.
- 1 US tablespoon = 5.25 grams.
- 3 US teaspoons = 5.25 grams.
Measuring note
Spoon into a dry US cup and level without packing.
Lumps, sifting, and compaction can change the volume weight.
Where the 84 g cup estimate comes from
King Arthur Baking's ingredient chart gives 42 g per ½ US cup of unsweetened cocoa. Doubling that stated half-cup quantity yields the approximate 84 g-per-cup reference in this calculator; it is a calculated extension, not a separate measured one-cup entry. A ¼ US cup is about 21 g under the same assumption.
Loose cocoa can form lumps or settle differently when packed, so break up obvious lumps, spoon into a dry measuring cup and level without compressing. When the recipe supplies grams, prefer that mass to a volume extrapolation.
Natural and Dutch-process: first follow the recipe
Choosing a cocoa powder for a bake is not the same as converting its volume to mass. Natural and Dutch-process cocoa differ in acidity and can interact differently with baking soda or baking powder. King Arthur's cocoa explanation gives the relevant context and exceptions.
If your recipe specifies natural or Dutch-process, use that type unless you have an appropriate tested substitution instruction from the recipe author. The 84 g figure here does not independently validate substitution between the two, their baking behavior, or a particular brand's density.