By Zencalcy Editorial TeamLast reviewed About us
Out of instant yeast? Convert between instant, active dry, and fresh yeast — or estimate starter — using potency ratios, so fermentation stays on track.
Swap instant, active dry, fresh, and starter correctly.
active dry = instant × 1.33 · fresh = instant × 3
| Symbol | Meaning |
|---|---|
| potency | Instant is strongest per gram; fresh is weakest (high water content) |
7 g instant (1 packet) → 9.3 g active dry, or 21 g fresh yeast.
Continue with the Air Fryer Calculator, Butter Calculator, or the Cake Pan Converter — or browse more cooking converters tools and all cooking calculators.
No — mix it straight into flour. Active dry needs dissolving in warm water first.
Calculate dough hydration percentage for baking
Free calculator · No signup
Free calculator · No signup
Free calculator · No signup
Free calculator · No signup
Free calculator · No signup
Content updated: September 2026