Yeast Conversion Calculator

Calculator for converting between three yeast kinds and their equivalent amounts in ounces, grams, spoons, cups and yeast percentage.

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This automatic yeast equivalents calculator, for yeast alternatives, assumes the (world's standard practice) weight and volume measures are: Active dry yeast = 0.25 ounce per 2-1/2 teaspoons, Instant yeast = 1 ounce per 3 tablespoons. Fresh compressed baker's yeast weighs 122 - 130 g US measuring cup = 128 - 136 g Metric cup/250mL (for crumbled yeast) and 254 grams per US cup = 268 grams per Metric cup exactly when yeast is tightly pressed into cup (100 percent of all air removed.) Easy convert between these three yeast types - and replace each one yeast for another yeast's replacement/equivalent measure in cups - teaspoons tsp - tablespoons tbsp. I will add also wild yeast right after I learn how to work with it.
You may enter whole numbers, decimals or fractions ie: 7, 29.35, 15 3/4

Yeasts replacing formula calculating method

The yeast calculating math-formula:

1 part instant yeast (100%) = 3 parts fresh compressed yeast (300%) = 1.5 parts active dry yeast (150%)

Cup of compressed fresh baker's yeast
( pressed into cup - air removed )

Four yeast types equivalents

Active dry yeast versus instant yeast chart

active dry to instant yeast conversion chart:
equivalent to =>	equals cup of instant yeast	equals tablespoon-s of instant yeast	equals teaspoon-s of instant yeast	equals grams of instant yeast
1 cup of active dry yeast	2/3 cup	10-2/3 tbsp	32 tsp	100g
1 tablespoon of active dry yeast	0.04 cup	2/3 tbsp	2 tsp	6.3g
1 teaspoon of active dry yeast	0.01 cup	1/4 tbsp	2/3 tsp	2.1g

To convert between various yeast type amounts and to replace one with another is relatively simple, but, the final measuring then should preferably be accurate for achieving a correctly working dough.

Active dry yeast versus compressed fresh baker's yeast chart

active dry to baker's fresh yeast conversion chart:
equivalent to =>	equals cup-s of fresh yeast	equals tablespoon-s of fresh yeast	equals teaspoon-s of fresh yeast	equals grams of fresh yeast
1 cup of active dry yeast	2 cup	32 tbsp	96 tsp	272g
1 tablespoon of active dry yeast	1/8 cup	2 tbsp	6 tsp	17g
1 teaspoon of active dry yeast	0.04 cup	2/3 tbsp	2 tsp	5.7g

Cup of fresh baker's yeast - crumbled.
Cup of fresh baker's yeast
( crumbled - not pressed into the cup )

Instant yeast versus active dry yeast chart

instant to active dry yeast conversion chart:
equivalent to =>	equals cup-s of active dry yeast	equals tablespoon-s of active dry yeast	equals teaspoon-s of active dry yeast	equals grams of active dry yeast
1 cup of instant yeast	1-1/2 cup	24 tbsp	72 tsp	204g
1 tablespoon of instant yeast	0.1 cup	1-1/2 tbsp	4-1/2 tsp	13g
1 teaspoon of instant yeast	0.03 cup	1/2 tbsp	1-1/2 tsp	4.25g

Example on how/when to use instant yeast to active dry yeast converter:: Q. 1.5 tablespoons instant yeast converted to active dry yeast; A. 2.25 or 2-1/4 tbsp - tablespoons of ACTIVE DRY yeast replace 1.5 tbsp - tablespoon of INSTANT yeast.; Math : 1.5 tbsp - tablespoon of INSTANT yeast = 2.25 - 2-1/4 tbsp - tablespoons of ACTIVE DRY yeast; Conversion Formula : 1 part of INSTANT yeast = 1-1/2 or 1.5 or one and half parts of ACTIVE DRY yeast

Instant yeast versus compressed fresh baker's yeast chart

instant to baker's fresh yeast conversion chart:
equivalent to =>	equals cup-s of fresh yeast	equals tablespoon-s of fresh yeast	equals teaspoon-s of fresh yeast	equals grams of fresh yeast
1 cup of instant yeast	3 cup	48 tbsp	144 tsp	408g
1 tablespoon of instant yeast	0.2 cup	3 tbsp	9 tsp	25.5g
1 teaspoon of instant yeast	0.06 cup	1 tbsp	3 tsp	8.5g

Block of compressed fresh baker's yeast

Fresh baker's compressed yeast versus active dry yeast chart

fresh baker's to active dry yeast conversion chart:
equivalent to =>	equals cup-s of active dry yeast	equals tablespoon-s of active dry yeast	equals teaspoon-s of active dry yeast	equals grams of active dry yeast
1 cup of fresh baker's yeast	1/2 cup	8 tbsp	24 tsp	68g
1 tablespoon of fresh baker's yeast	0.03 cup	1/2 tbsp	1-1/2 tsp	4.3g
1 teaspoon of fresh baker's yeast	0.01 cup	1/5 tbsp	1/2 tsp	1.4g

Example for how/when to use fresh yeast to dry active yeast converter:: Q. What is a conversion of 150g fresh yeast to dry active yeast by teaspoons?; A. There are 26-1/2 tsp of dry yeast needed to replace 150 grams of fresh yeast.; Math : 150 g - ( grams ) of FRESH yeast = 26.46 tsp - ( teaspoons ) of ACTIVE DRY yeast; Conversion Formula : 1 part of FRESH yeast = 1/2 or 0.5 or half part of ACTIVE DRY yeast

Fresh baker's compressed yeast versus instant yeast chart

fresh baker's to instant yeast conversion chart:
equivalent to =>	equals cup-s of instant yeast	equals tablespoon-s of instant yeast	equals teaspoon-s of instant yeast	equals grams of instant yeast
1 cup of fresh baker's yeast	1/3 cup	5-1/3 tbsp	16 tsp	50.4g
1 tablespoon of fresh baker's yeast	0.02 cup	1/3 tbsp	1 tsp	3.2g
1 teaspoon of fresh baker's yeast	0.007 cup	0.11 tbsp	0.33 tsp	1.1g

Replacing yeast with Brewers' yeast

Brewer's yeast math-formula:

1 part of brewer's yeast (100%) = 0.45 part ( ~ 1/2 ) of active dry yeast (45%)
1 part of active dry yeast (100%) = 2.2 parts of brewer's yeast (220%)

Brewer's yeast, even though it is nutritionally rich in protein, chromium, selenium and B vitamins it does not contain essential Vitamin B12 so vegetarians take that into account. A great vitamin B12 supplement solution is to take Folate tablets - Folic Acid, B12 and B6 combination (Folate repairs our DNA as well - I have one table every day.) OK back to the brewers yeast, it is slow-rising yeast (because it produces ethanol instead of carbon dioxide which faster yeasts make), dough will rise much longer even if more yeast was added. Which means; dough can rise more than once, therefore, it can be used to add more flavor or texture into certain/quite marvelous baking. We use it with harder coarser flours, the Spelt flour is just one example.

Measuring weight of 1 cup volume of Brewer's yeast :

Cup of powdered Brewer's yeast.
Brewer's yeast powder
measuring the mass of 1 cup

Sachet of instant yeast ...

One sachet of instant yeast from a box may weigh anywhere between 5g to 15g therefore notice this weight number on the original yeast packaging.

I prefer to use the instant yeast as it contains a lot more of yeast living cells, 4 times more than active dry yeast and by 300% more than the compressed fresh yeast. And I also bake a lot with adding the brewers yeast as it produces much nicer flavours and it is healthier to digest - use the calculator above to work our the optimal equivalent amounts to replace other yeasts for powdered brewers' yeast type.