Instant yeast — cups to grams chart
| Instant yeast | Grams | Ounces |
|---|---|---|
| ¼ cup | 38 g | 1.33 oz |
| ⅓ cup | 50 g | 1.78 oz |
| ½ cup | 76 g | 2.66 oz |
| ⅔ cup | 101 g | 3.55 oz |
| ¾ cup | 113 g | 3.99 oz |
| 1 cup | 151 g | 5.33 oz |
| 1½ cups | 227 g | 7.99 oz |
| 2 cups | 302 g | 10.65 oz |
| 3 cups | 453 g | 15.98 oz |
| 1 tablespoon | 9.4 g | 0.33 oz |
| 1 teaspoon | 3.1 g | 0.11 oz |
Grams to cups: instant yeast
Working the other way — a recipe in grams, and cups are what you have in the drawer:
| Grams of instant yeast | Cups (approx.) |
|---|---|
| 50 g | ⅓ cups |
| 100 g | ⅔ cups |
| 125 g | ⅚ cups |
| 200 g | 1⅓ cups |
| 250 g | 1⅔ cups |
| 500 g | 3⅓ cups |
Where this number comes from
Most of our weights are the King Arthur Baking chart figure, unchanged. This one is not, and it is worth saying why: Anchored on the packet, not the chart: a standard 7 g packet is 2¼ tsp, which is 3.11 g/tsp. Keeps this consistent with the yeast converter.
We would rather publish the number your scale will agree with and show our reasoning than quote a familiar chart that rounds the physics away. Every value we don't depart on is locked to the chart by a test, so this list stays short and deliberate — you can read all of them on the methodology page.
Why the measuring method matters
The 151 g figure assumes instant yeast measured 3.1 g per tsp. Volume measurement is sensitive to how the cup is filled — packing or scooping changes how much fits, which is why the same "1 cup" can vary noticeably between two bakers. A scale removes the variable entirely, and it is the reason professional recipes are written in weight.