How many grams is half a tablespoon of active dry yeast?
One teaspoon of active dry yeast weighs about 3.13 grams and one tablespoon is about 9.38 grams, so half a tablespoon comes out to roughly 4.69 grams. One standard packet = 7 g = 2¼ tsp = ¼ oz, the same as instant yeast. About 3 g/tsp. Active dry traditionally proofs in warm water first, though King Arthur considers it optional.
Small spoon amounts are where weighing has the biggest payoff: tiny errors compound in baking. If your scale reads in 1-gram steps you can measure active dry yeast directly. (For reference, one US cup is 150 g.)
Active dry yeast conversion chart
| Amount | Grams | Ounces |
|---|---|---|
| ⅛ tsp | 0.391 g | 0.014 oz |
| ¼ tsp | 0.781 g | 0.028 oz |
| ½ tsp | 1.56 g | 0.055 oz |
| ¾ tsp | 2.34 g | 0.083 oz |
| 1 tsp | 3.13 g | 0.11 oz |
| 1 tbsp | 9.38 g | 0.331 oz |
| 2 tbsp | 18.75 g | 0.661 oz |
| ¼ cup | 37.5 g | 1.32 oz |
Other active dry yeast conversions
* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.