Yeast Conversion Calculator
Convert between different types of yeast for your bread recipes.
Convert Yeast Amounts
Equivalent Amounts
7.0g
Instant Yeast
Original8.8g
Active Dry Yeast
21g
Fresh Yeast
Teaspoon reference: 2.3 tsp instant ≈ 2.9 tsp active dry(1 tsp ≈ 3g)
Packet sizes: Standard US yeast packet = 7g (2¼ tsp). One packet is typically used for 4 cups (500g) of flour.
Yeast Types Explained
Instant Yeast (Rapid Rise, Bread Machine Yeast)
Fine granules that can be mixed directly with dry ingredients. Works faster than active dry yeast. Common brands: SAF Instant, Fleischmann's RapidRise.
Active Dry Yeast
Larger granules that traditionally need to be dissolved in warm water (105-110°F) before use, though modern versions can be mixed directly. Takes slightly longer to rise than instant.
Fresh Yeast (Cake Yeast, Compressed Yeast)
Moist, perishable yeast sold in blocks. Must be refrigerated and used within 2 weeks. Preferred by some professional bakers for its flavor. Crumble into liquids before mixing.
Conversion Ratios
| From | To | Multiply By |
|---|---|---|
| Instant Yeast | Active Dry Yeast | × 1.25 |
| Instant Yeast | Fresh Yeast | × 3.0 |
| Active Dry Yeast | Instant Yeast | × 0.8 |
| Active Dry Yeast | Fresh Yeast | × 2.4 |
| Fresh Yeast | Instant Yeast | × 0.33 |
| Fresh Yeast | Active Dry Yeast | × 0.42 |
Tips for Using Yeast
- •Storage: Keep instant and active dry yeast in the freezer for longest shelf life (up to 2 years). Fresh yeast must be refrigerated and used within 2 weeks.
- •Testing: To test if yeast is alive, dissolve in warm water with a pinch of sugar. It should foam within 10 minutes.
- •Temperature: Yeast is killed above 140°F (60°C). Use water between 95-110°F (35-43°C) for optimal activity.
- •Salt: Don't let yeast come in direct contact with salt, as salt inhibits yeast activity.