How Many Grams in a Cup of Instant Yeast?
A cup of instant yeast weighs about 150 grams. Here is the complete cup-to-gram and gram-to-cup conversion table, plus the answer to common volume-to-weight questions for instant yeast.
Volume to Grams — Instant Yeast
Quick reference for the most common amounts. Numbers rounded to the nearest gram.
| Cups | Grams |
|---|---|
| 1/4 cup | 37.5 g |
| 1/3 cup | 50 g |
| 1/2 cup | 75 g |
| 2/3 cup | 100 g |
| 3/4 cup | 113 g |
| 1 cup | 150 g |
| 1 1/2 cups | 225 g |
| 2 cups | 300 g |
| 3 cups | 450 g |
| 4 cups | 600 g |
| Tablespoons | Grams |
|---|---|
| 1 tsp | 3.1 g |
| 1 tbsp | 9.3 g |
| 2 tbsp | 18.6 g |
| 3 tbsp | 27.9 g |
| 4 tbsp | 37.2 g |
| 6 tbsp | 55.8 g |
| 8 tbsp | 74.4 g |
| 12 tbsp | 112 g |
| 16 tbsp | 149 g |
Grams to Cups — Instant Yeast
Have a recipe in grams and need cups? Use this reverse table.
| Grams | Cups | Tablespoons |
|---|---|---|
| 25 g | 0.167 cups | 2.69 tbsp |
| 50 g | 0.333 cups | 5.38 tbsp |
| 75 g | 0.5 cups | 8.06 tbsp |
| 100 g | 0.667 cups | 10.8 tbsp |
| 150 g | 1 cups | 16.1 tbsp |
| 200 g | 1.33 cups | 21.5 tbsp |
| 250 g | 1.67 cups | 26.9 tbsp |
| 300 g | 2 cups | 32.3 tbsp |
| 500 g | 3.33 cups | 53.8 tbsp |
| 1000 g | 6.67 cups | 107.5 tbsp |
Why does instant yeast weigh what it weighs?
Leavening agents are potent — a teaspoon too much baking soda makes cakes metallic and bitter, while a teaspoon too little leaves them flat. The density of baking powder and soda also varies by brand and age. Weighing avoids the confusion of "rounded" versus "level" teaspoons and produces consistent rise every time.
For instant yeast specifically, 1 cup weighs 150g. That is the figure to plug into recipes calling for cup measurements when you want gram precision. ChefVault stores this density (and 118 others) so you never have to look it up twice.
Recipes that originated outside the United States almost always specify weight in grams. Translating these to US cup measurements introduces error in every step. The ChefVault app handles the math automatically — paste a recipe, hit convert, get a clean weight-based version.
Frequently Asked Questions
How many grams are in 1 cup of instant yeast?
1 cup of instant yeast weighs approximately 150 grams.
How many grams in 1 tablespoon of instant yeast?
1 tablespoon of instant yeast weighs approximately 9.3 grams.
How many grams in 1 teaspoon of instant yeast?
1 teaspoon of instant yeast weighs approximately 3.1 grams.
How many grams are in 1/2 cup of instant yeast?
1/2 cup of instant yeast weighs about 75 grams.
How many grams are in 1/4 cup of instant yeast?
1/4 cup of instant yeast weighs about 37.5 grams.
How many tablespoons of instant yeast are in 100 grams?
100 grams of instant yeast is about 10.8 tablespoons.
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