How Many Grams of Yeast Are in a Packet?
A common US packet of dry yeast contains 7 grams (¼ ounce), approximately 2¼ teaspoons. Check your packet: sachets in other sizes exist, and a strip of three packets is not one packet.
- 3 min read
- Updated 2026-10-22
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| Share of a 7 g packet | Grams | Approximate teaspoons |
|---|---|---|
| ⅓ packet | 2.33 g | ¾ tsp |
| ½ packet | 3.5 g | 1⅛ tsp |
| ⅔ packet | 4.67 g | 1½ tsp |
| 1 packet | 7 g | 2¼ tsp |
| 2 packets | 14 g | 4½ tsp |
| 3 packets | 21 g | 6¾ tsp |
Calculated from 7 g and 2¼ tsp per packet; grams rounded where needed. Teaspoons are approximate volume equivalents, not a universal density standard.
Scale your ingredients
Replace the example in the scaler below with your ingredients, one quantity per line. The starting multiplier is 0.5; change it for your conversion direction or batch size. This scales quantities, not baking time or ingredient densities.
Measure from a jar instead of opening a packet
For a recipe calling for one standard 7 g packet, weigh 7 g from the jar or measure about 2¼ level teaspoons. One tablespoon is 3 teaspoons, so a full tablespoon is more than one packet. A three-packet strip contains 21 g total when each envelope is labeled 7 g. Red Star’s active dry product page confirms the 7 g and approximate 2¼-teaspoon packet convention.
Active dry versus instant
Packet mass and yeast type answer different questions. A packet labeled 7 g contains that mass whether it is active dry or instant, but that does not establish an identical fermentation schedule. Follow the recipe and product directions for mixing or rehydration. When substituting types, use the yeast converter and its stated assumptions rather than treating a packet as a universal unit of strength.
Scale the recipe, not just the packet
The scaler above starts at 0.5 for a half batch. Enter “7 g yeast” with the rest of your measured ingredients to get 3.5 g. Writing the mass is more useful than leaving the result as half a package when your package is a different size. For a two-thirds batch, enter 2/3; the yeast quantity becomes about 4.67 g.
Small amounts and slow doughs
A kitchen scale that reads only whole grams is poorly suited to a 1 g yeast dose. Use a scale with finer resolution or the recipe’s volume measure when available. Follow the product’s storage directions after opening. More yeast does not simply mean a better loaf: dough temperature, fermentation length and sugar content affect the rise. Judge readiness using the recipe’s dough cues, not the packet count alone.
Frequently asked questions
Is a yeast packet 7 g or 8 g?
A common US packet is 7 g, but packet sizes vary. Use the printed net weight.
How many teaspoons are in a 7 g packet?
Approximately 2¼ teaspoons of dry yeast.
How much yeast is half a packet?
For a 7 g packet, half is 3.5 g, approximately 1⅛ teaspoons.
Is instant yeast the same as baking powder?
No. Yeast ferments dough; baking powder is a chemical leavener and is not a direct replacement.