Yeast Converter
Instantly translate yeast measurements between all common baking types.
Standard yeast that needs proofing in warm water.
Active dry yeast
Instant yeast
Rapid-rise yeast
Fresh cake yeast
How to Use This Calculator
Select the yeast you have
Choose active dry, instant, rapid-rise, or fresh cake yeast from the dropdown list.
Enter the quantity from your recipe
Type the amount and specify teaspoons, tablespoons, or grams.
Use the equivalents
The output shows exactly how much of each yeast type to use if you need a substitution.
Formula
grams = teaspoons × gramsPerTeaspoon
equivalentTeaspoons = grams ÷ gramsPerTeaspoon
tablespoons = teaspoons ÷ 3
Example: 2¼ tsp active dry = 7.0 g. Instant yeast uses 3.0 g/tsp → 7 ÷ 3 = 2.33 tsp instant.
Fresh yeast: Fresh cake yeast is typically used at 3× the weight of active dry.
Full Description
Yeast conversions can be confusing because each type behaves differently. Active dry needs proofing, instant can be mixed directly into flour, and fresh yeast is sold in moist cakes. This calculator harmonizes all three so you can substitute confidently without affecting rise times or texture.
The grams-per-teaspoon values come from professional baking references. They reflect the practical differences in density and moisture content for each yeast type. Use the results to adjust recipes, scale big batches, or work around supply shortages.
Best when
- You only have instant yeast but the recipe specifies active dry.
- You want to swap fresh cake yeast into a home bread recipe.
- You are teaching baking classes and need quick reference values.
- You're scaling artisanal bread formulas by weight.
Keep in mind that proofing times can vary slightly. Instant yeast may reduce rise times; monitor dough volume rather than the clock. Fresh yeast performs best when crumbled into liquid before mixing.
Frequently Asked Questions
Do I need to proof instant yeast?
No. Instant yeast can go straight into dry ingredients. Proofing won't hurt but isn't necessary.
How much fresh yeast equals one packet of dry yeast?
One 7 g packet of active dry yeast equals about 21 g fresh cake yeast, or roughly ⅔ of a 0.6 oz cake.
Can I substitute rapid-rise for instant yeast?
Yes. They weigh the same. Rapid-rise may shorten proofing time slightly; keep an eye on dough volume.
How should I store yeast?
Keep unopened yeast in a cool, dry pantry. Once opened, refrigerate or freeze in an airtight container to extend shelf life.