Convert Instant Yeast from Ounces to Teaspoon

How many teaspoons is 1 ounce of instant yeast?

1 ounce of instant yeast (fast-acting yeast) is 9.45 teaspoons. 2 ounces of instant yeast is 18.9 teaspoons. 1/2 ounce of instant yeast is 4.73 teaspoons. 1/4 ounce (0.25 ounce) of instant yeast is 2.36 teaspoons. Use the converter below for any amount.

  • A teaspoon here is the 5 ml standard, the same in the UK, Europe, and Australia. A US teaspoon is fractionally smaller at about 4.9 ml. When teaspoon size matters →
  • A little over or under won't ruin the bake, though it can nudge the final taste or colour.

Instant yeast is a finely milled dry yeast that mixes straight into dry ingredients without proofing first. One metric cup (250 ml) of instant yeast weighs around 150 grams or 5.29 ounces, though recipes almost always measure it by the teaspoon or sachet (a 7 g sachet equals about 2 1/3 teaspoons). It is the quickest route to a reliable rise in bread, pizza dough, and cinnamon rolls.

Yeast amounts are tiny but matter a lot: too little gives a dense loaf, too much an over-proofed one with a yeasty taste. Weighing in grams is far more accurate than scooping a teaspoon, especially when scaling a recipe up or down.

Also known as

  • fast-acting yeast
  • rapid rise yeast
  • bread machine yeast
  • quick yeast

Active dry yeast is granular and needs proofing in warm liquid before use, unlike instant yeast which goes straight into the dry mix. They are interchangeable 1:1 by weight, so the swap is about method rather than amount. See what 1 ounce of active dry yeast is in teaspoons.

No scale? The tool below gives a good estimate, but for exact bakes a digital kitchen scale removes the guesswork.

Weigh it exact, get a scale

Instant Yeast Measurement Converter

Enter a value and pick your units.

Result

9.45 Teaspoon

Common Instant Yeast Conversions

Here are the most common instant yeast conversions from ounces to teaspoons.

OuncesTeaspoons
1 oz9.45 tsp
2 oz18.9 tsp
3 oz28.36 tsp
4 oz37.81 tsp
5 oz47.26 tsp
6 oz56.71 tsp
8 oz75.61 tsp
10 oz94.52 tsp
12 oz113.42 tsp

Instant Yeast Conversion Chart

The conversion chart below gives a quick reference for converting instant yeast from Ounces to Teaspoon and other measurements.

ouncestspcupgramscup(US)tbsp
2.5 oz23.63 tsp0.47 cup70.89 g0.49 cup (US)7.88 tbsp
5 oz47.26 tsp0.95 cup141.78 g0.98 cup (US)15.75 tbsp
7.5 oz70.89 tsp1.42 cup212.67 g1.48 cup (US)23.63 tbsp
10 oz94.52 tsp1.89 cup283.55 g1.97 cup (US)31.51 tbsp

For the reverse conversion, see 1 teaspoon of instant yeast in ounces.

Frequently Asked Questions

What is 1 ounce of instant yeast in teaspoons?
1 ounce of instant yeast is 9.45 teaspoons. The ratio is fixed, so 2 ounces of instant yeast is 18.9 teaspoons and 0.5 ounces is 4.73 teaspoons. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the instant yeast converter
How many teaspoons is 1.5 ounces of instant yeast?
1.5 ounces of instant yeast is 14.18 teaspoons. The ratio is fixed, so 1 ounce of instant yeast is 9.45 teaspoons and 2 ounces is 18.9 teaspoons. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
What is 2 ounces of instant yeast in teaspoons?
2 ounces of instant yeast is 18.9 teaspoons. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 ounce of instant yeast is 9.45 teaspoons, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact teaspoons reading.
How many ounces of instant yeast is 9.45 teaspoons?
9.45 teaspoons of instant yeast is 1 ounce. The conversion works the same in reverse, so you can switch between teaspoons and ounces without changing the result. This helps when a recipe lists ounces but you would rather weigh or measure in teaspoons. The converter above and the chart below cover both directions for any amount.
How much is 1 ounce of fast-acting yeast in teaspoons?
Fast-acting yeast is another name for instant yeast, so 1 ounce of fast-acting yeast is 9.45 teaspoons, exactly the same as instant yeast. The figure does not change with the name: 2 ounces is 18.9 teaspoons and 0.5 ounces is 4.73 teaspoons. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.
Are instant yeast and fast-acting yeast the same thing?
Yes. Fast-acting yeast is another name for instant yeast, so they are the same ingredient and convert identically. 1 ounce of instant yeast is 9.45 teaspoons under either name, and 2 ounces is 18.9 teaspoons. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
What is 1/2 oz instant yeast in teaspoons?
1/2 ounce of instant yeast is 4.73 teaspoons. The ratio is fixed, so 1 ounce of instant yeast is 9.45 teaspoons and 2 ounces is 18.9 teaspoons. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart below for the common ones.
What is 1/4 oz instant yeast in teaspoons?
1/4 ounce (0.25 ounce) of instant yeast is 2.36 teaspoons. The ratio is fixed, so 1 ounce of instant yeast is 9.45 teaspoons and 2 ounces is 18.9 teaspoons. Quarter amounts often come up when scaling a recipe down step by step, and the figure divides cleanly. Use the converter above for any other quantity, or the chart below for the most common amounts.

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