1 tablespoon of cocoa powder weighs 5.2 g. Cocoa powder is one of the lightest ingredients per tablespoon, because it is a fine, fluffy powder full of air. It is also one of the most potent: a tablespoon of cocoa can flavour a whole cake, and the difference between natural and Dutch-processed cocoa changes how a recipe rises.
All figures on this page are approximate, and they come from King Arthur Baking, measured spooned and levelled. When a recipe has to work the first time, verify with a kitchen scale.
Conversion table
| Amount | Grams of cocoa powder |
|---|---|
| 1 teaspoon | 1.8 g |
| 1 tablespoon | 5.2 g |
| 2 tablespoons | 10.5 g |
| 3 tablespoons | 15.8 g |
| 1/4 cup (4 tablespoons) | 21 g |
| 1/3 cup | 28 g |
| 1/2 cup (8 tablespoons) | 42 g |
| 3/4 cup (12 tablespoons) | 63 g |
| 1 cup (16 tablespoons) | 84 g |
One tablespoon is one sixteenth of a cup, so every figure above is simply the cup weight divided by 16, rounded to one decimal place. All figures are approximate; verify with a kitchen scale when it matters.
Method and source
The figure on this page comes from King Arthur Baking, measured spooned and levelled. Unsweetened cocoa powder; natural cocoa is acidic, Dutch-processed is alkalised. Chocolate cakes, brownies, hot chocolate and dusting.
All results on this page are approximate. Ingredient weights vary with brand, humidity, temperature and how firmly you pack the cup, so when a recipe has to work the first time, weigh the ingredient on a kitchen scale and use the numbers here as a guide.
Worked examples
A chocolate cake with a deep flavour
A chocolate cake recipe uses 6 tablespoons of cocoa powder, about 31 g, sifted with the flour. The cocoa is the only chocolate in the cake, so its quality matters: use a good Dutch-processed cocoa for a dark colour and a smooth flavour. Sift it, because cocoa clumps badly and lumps will show up as dark spots.
Hot chocolate for a cold evening
A mug of hot chocolate uses 2 tablespoons of cocoa powder, about 10 g, whisked with sugar and hot milk. The cocoa should be whisked into a little cold milk first to make a smooth paste, then topped up with hot milk. Adding cocoa powder straight to hot milk makes lumps.
A dusting of cocoa on a tiramisu
A tiramisu is finished with 2 tablespoons of cocoa powder, about 10 g, dusted over the top through a fine sieve. The cocoa should be the last thing added, just before serving, because it absorbs moisture from the cream and goes dark and patchy if it sits too long.
Practical guidance
Dry powders and leavening agents are measured spooned and levelled, never heaped and never scooped from the container. A heaped tablespoon of baking soda can be double the intended amount, and that much extra leavening leaves a soapy, metallic taste and a collapsed crumb. Dip a dry spoon into the container, fill it, then level it with the back of a knife. Keep leavening in airtight containers away from humidity, and replace baking powder every six months once opened, because stale powder is the most common silent cause of flat cakes.
Scaling with tablespoons is easy once you know the weight of one spoon. To measure 100 g of cocoa powder, count out about 19.2 tablespoons, and for 50 g, about 9.6 tablespoons. Halving a recipe that calls for 4 tablespoons means using 2 tablespoons, or 10.5 g, and doubling it means 8 tablespoons, or 42 g. The key is to scale every ingredient by the same factor, because changing one ingredient without changing the others throws the recipe out of balance. For large amounts, switch to a cup measure or a scale: counting out 16 tablespoons is slow and error-prone, and a cup is faster and more accurate.
When should you weigh cocoa powder instead of measuring it? Whenever the recipe has to work the first time, and whenever the amount is large. A kitchen scale costs less than a single failed cake, and it removes the biggest source of variation in home cooking: the way ingredients pack into a cup or a spoon. Put the bowl on the scale, press tare, and add the cocoa powder until the display shows the number you need. There is nothing to wash afterwards except the bowl, and the result is the same every time. For small amounts, a level spoon is accurate enough, and for liquids, a jug is fine, but for anything where precision matters, the scale is the tool to reach for.
Storage. Airtight container, cool and dark, up to 2 years.
- Sift cocoa powder before using it; it clumps badly.
- Natural cocoa activates baking soda; Dutch-processed does not.
- Make a paste with cold milk before adding hot milk.
Frequently asked questions
How many grams is a tablespoon of cocoa powder?
One tablespoon of unsweetened cocoa powder weighs 5.2 g, and one teaspoon is about 1.7 g. A cup of cocoa powder is 84 g, which makes it one of the lightest ingredients per cup.
What is the difference between natural and Dutch-processed cocoa?
Natural cocoa is acidic and light brown, while Dutch-processed cocoa is alkalised, darker, and smoother in flavour. Natural cocoa activates baking soda, while Dutch-processed cocoa does not, so they are not interchangeable in recipes that use baking soda.
Can I substitute cocoa powder for chocolate?
Roughly. Three tablespoons of cocoa powder plus one tablespoon of butter replaces 30 g of unsweetened chocolate. The result is close, but the flavour is less rich, because cocoa powder has less cocoa butter than chocolate.
Why does cocoa powder clump?
It is a very fine powder that absorbs moisture from the air, and the particles stick together. Sift it before using it, or whisk it into a little liquid to make a paste before adding it to a recipe.
How long does cocoa powder keep?
About two years in an airtight container in a cool, dark place. It is a dry powder with no fat to go rancid, though Dutch-processed cocoa loses some of its flavour over time. If it smells weak, replace it.
Common mistakes to avoid
The most common mistake with dry powders is using a heaped spoon instead of a level one, which can double the amount of a powerful ingredient like baking soda. The second is scooping the spoon straight from the container, which packs the powder down and adds weight. The third is using a damp spoon, because moisture makes powders clump and stick, and the measurement becomes unreliable. The fourth mistake is confusing baking soda and baking powder, which look identical but behave very differently: soda needs an acid, powder does not, and swapping them will change whether a bake rises at all. Finally, do not keep leavening agents in a humid kitchen without a sealed container, because they absorb moisture and lose their strength, and a cake made with stale baking powder will not rise no matter how carefully you measure it.
Why recipes disagree: if you have ever found two charts giving different weights for the same ingredient, the reason is almost always the method. One chart measured the ingredient spooned and levelled, the other scooped it from the bag, and the two can differ by twenty percent. Brand and humidity add a few more grams of variation. That is why this page states the method alongside every figure, and why a kitchen scale is the only way to be certain. When two sources disagree, trust the one that tells you how it measured.