Convert Instant Yeast from Cup to Teaspoon

How many teaspoons is 1 cup of instant yeast?

1 cup of instant yeast (fast-acting yeast) is 50 teaspoons. 2 cups of instant yeast is 100 teaspoons. Use the converter below for any amount.

  • These figures use the metric cup (250 ml). A US cup is slightly smaller at 240 ml, so it holds a little less. Use the US cup converter →
  • Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →
  • 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 our Active Dry Yeast converter.

No measuring cups? The tool below gets you close. For consistent results, grab a measuring cup set.

Instant Yeast Measurement Converter

Enter a value and pick your units.

Result

0 Teaspoon

Common Instant Yeast Conversions

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

CupsTeaspoons
0.25 cups12.5 tsp
0.5 cups25 tsp
0.75 cups37.5 tsp
1 cup50 tsp
1.25 cups62.5 tsp
1.5 cups75 tsp
2 cups100 tsp
2.5 cups125 tsp
3 cups150 tsp

Instant Yeast Conversion Chart

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

cuptspgramsouncescup(US)tbsp
0.25 cup12.5 tsp37.5 g1.32 oz0.26 cup (US)4.17 tbsp
0.5 cup25 tsp75 g2.65 oz0.52 cup (US)8.33 tbsp
1 cup50 tsp150 g5.29 oz1.04 cup (US)16.67 tbsp
2 cup100 tsp300 g10.58 oz2.08 cup (US)33.33 tbsp

Frequently Asked Questions

How many teaspoons is 1 cup of instant yeast?
1 cup of instant yeast is 50 teaspoons. The ratio is fixed, so 2 cups of instant yeast is 100 teaspoons and 0.5 cups is 25 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 cups of instant yeast?
1.5 cups of instant yeast is 75 teaspoons. The ratio is fixed, so 1 cup of instant yeast is 50 teaspoons and 2 cups is 100 teaspoons. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
How many teaspoons is 2 cups of instant yeast?
2 cups of instant yeast is 100 teaspoons. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 cup of instant yeast is 50 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 cups of instant yeast is 50 teaspoons?
50 teaspoons of instant yeast is 1 cup. The conversion works the same in reverse, so you can switch between teaspoons and cups without changing the result. This helps when a recipe lists cups but you would rather weigh or measure in teaspoons. The converter above and the chart below cover both directions for any amount.
How many teaspoons is 1 cup of fast-acting yeast?
Fast-acting yeast is another name for instant yeast, so 1 cup of fast-acting yeast is 50 teaspoons, exactly the same as instant yeast. The figure does not change with the name: 2 cups is 100 teaspoons and 0.5 cups is 25 teaspoons. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.

Other Ingredients

If you need help with any other ingredients click below: