Convert Instant Yeast from Cup to Cup (US)

How many US cups is 1 cup of instant yeast?

1 cup of instant yeast (fast-acting yeast) is 1.04 US cups. 2 cups of instant yeast is 2.08 US cups. 1/2 cup of instant yeast is 0.52 US cups. 1/4 cup (0.25 cup) of instant yeast is 0.26 US cups. 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.
  • These figures use the US cup (240 ml). A metric cup is slightly larger at 250 ml, so it holds a little more.
  • 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 →

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 cup of active dry yeast is in US cups.

No measuring cups? The tool below gets you close, and a measuring cup set keeps every batch the same.

Scoop it right, get measuring cups

Instant Yeast Measurement Converter

Enter a value and pick your units.

Result

1.04 Cup (US)

Common Instant Yeast Conversions

Here are the most common instant yeast conversions from cups to cups (US).

CupsCups (US)
0.25 cups0.26 cups (US)
0.5 cups0.52 cups (US)
0.75 cups0.78 cups (US)
1 cup1.04 cups (US)
1.25 cups1.3 cups (US)
1.5 cups1.56 cups (US)
2 cups2.08 cups (US)
2.5 cups2.6 cups (US)
3 cups3.13 cups (US)

Instant Yeast Conversion Chart

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

cupcup(US)gramsouncestbsptsp
0.25 cup0.26 cup (US)37.5 g1.32 oz4.17 tbsp12.5 tsp
0.5 cup0.52 cup (US)75 g2.65 oz8.33 tbsp25 tsp
1 cup1.04 cup (US)150 g5.29 oz16.67 tbsp50 tsp
2 cup2.08 cup (US)300 g10.58 oz33.33 tbsp100 tsp

This is a volume conversion, so the result is the same for every ingredient. Use the cups to cups (US) volume converter to switch between cups, tablespoons, teaspoons, and millilitres without weighing.

Frequently Asked Questions

What is 1 cup of instant yeast in US cups?
1 cup of instant yeast is 1.04 US cups. The ratio is fixed, so 2 cups of instant yeast is 2.08 US cups and 0.5 cups is 0.52 US cups. 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 US cups is 1.5 cups of instant yeast?
1.5 cups of instant yeast is 1.56 US cups. The ratio is fixed, so 1 cup of instant yeast is 1.04 US cups and 2 cups is 2.08 US cups. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
What is 2 cups of instant yeast in US cups?
2 cups of instant yeast is 2.08 US cups. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 cup of instant yeast is 1.04 US cups, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact US cups reading.
How many cups of instant yeast is 1.04 US cups?
1.04 US cups of instant yeast is 1 cup. The conversion works the same in reverse, so you can switch between US cups and cups without changing the result. This helps when a recipe lists cups but you would rather weigh or measure in US cups. The converter above and the chart below cover both directions for any amount.
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 cup of instant yeast is 1.04 US cups under either name, and 2 cups is 2.08 US cups. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
What is 1/2 cup instant yeast in US cups?
1/2 cup of instant yeast is 0.52 US cups. The ratio is fixed, so 1 cup of instant yeast is 1.04 US cups and 2 cups is 2.08 US cups. 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 cup instant yeast in US cups?
1/4 cup (0.25 cup) of instant yeast is 0.26 US cups. The ratio is fixed, so 1 cup of instant yeast is 1.04 US cups and 2 cups is 2.08 US cups. 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.

Other Ingredients

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