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Yeast Converter

Written by · Updated August 13, 2026

Convert a recipe between active dry, instant and fresh yeast so you can use whatever you have on hand.

Instant ≈ 75% of active dry; fresh ≈ 2.5× active dry (by weight).

Yeast Converter

Instant ≈ 75% of active dry; fresh ≈ 2.5× active dry (by weight).

UnitEquivalent
1 active dry yeast 0.8 instant / rapid-rise · 2.5 fresh / cake yeast
1 instant / rapid-rise 1.25 active dry yeast · 3.13 fresh / cake yeast
1 fresh / cake yeast 0.4 active dry yeast · 0.32 instant / rapid-rise

Tips

  • Instant yeast can be mixed straight into the flour; active dry is best proofed first.
  • If swapping active dry for instant, you can use about 25% less.

Frequently asked questions

How do I substitute instant yeast for active dry?

Use about 25% less instant yeast than active dry (instant ≈ 0.75× active dry), and you can mix it straight into the flour without proofing.