144 g of active dry yeast is 1 cup. That is the whole answer: one US cup of active dry yeast weighs 144 g (spooned and levelled, King Arthur Baking), so 144 g divided by 144 g per cup is exactly 1 cup. All the figures on this page are approximate — active dry yeast is a natural product, and how it is measured moves the weight of a cup by a few grams — so when the recipe is delicate, verify with a kitchen scale. For everyday cooking, 1 cup is the number to use.

This page is the reverse of the usual conversion: most recipes list active dry yeast in cups and the cook wants grams, but here the recipe, the packet or the scale gives grams and the cook has only cup measures. That happens more often than people expect — imported recipes, nutrition labels, bulk packs and meal-prep plans all speak in grams, while American cup measures are what is actually in the drawer. The conversion is one division, 144 ÷ 144 = 1, and the table below runs the same division for the amounts that come up most often.

144 grams of active dry yeast in cups — conversion table

Grams Cups (approx.)
10 g 0.07 (1/8 cups)
25 g 0.17 cups
50 g 0.35 (1/3 cups)
75 g 0.52 (1/2 cups)
100 g 0.69 cups
125 g 0.87 (7/8 cups)
150 g 1.04 (1 cup)
200 g 1.39 cups
250 g 1.74 (1 3/4 cups)
300 g 2.08 (2 1/8 cups)
400 g 2.78 cups
500 g 3.47 (3 1/2 cups)

Read the table from left to right: find the grams you have, and the cups column tells you how much that is, approximately. A quarter of a cup is 36 g, half a cup is 72 g, and three quarters is 108 g. For amounts between the rows, divide the grams by 144: for example, 108 g is 0.75 (3/4 cups), and 216 g is 1.50 (1 1/2 cups). The same 144 g figure works in the other direction too — multiply cups by 144 to get grams — and the second table runs that calculation for the common cup fractions.

Cups Grams (approx.)
1/4 cup 36 g
1/3 cup 48 g
1/2 cup 72 g
2/3 cup 96 g
3/4 cup 108 g
1 cup 144 g
1 1/2 cups 216 g
2 cups 288 g

Scaling a spice blend for a market stall or a big batch

A rub or curry powder made in bulk from a recipe written in grams. Take the 72 g figure first: 72 g of active dry yeast is 0.50 (1/2 cups), because 72 divided by 144 is 0.50. In practice that means a recipe calling for 0.50 (1/2 cups) can be weighed out as 72 g and poured or spooned straight in, with no jug to wash. The habit to build is converting once, writing the cup figure on the recipe, and then cooking from the cups — the scale only comes out for the first batch, and after that the converted recipe is a cup recipe. If the amount is awkward, round to the nearest tablespoon: one tablespoon of active dry yeast weighs about 9.0 g, so a couple of spoonfuls either way covers most rounding gaps without anyone noticing in the finished dish.

A bakery that buys leavener by the kilo

A professional kitchen converting a bulk bag into cup measures for a daily bake. Take the 216 g figure first: 216 g of active dry yeast is 1.50 (1 1/2 cups), because 216 divided by 144 is 1.50. In practice that means a recipe calling for 1.50 (1 1/2 cups) can be weighed out as 216 g and poured or spooned straight in, with no jug to wash. The habit to build is converting once, writing the cup figure on the recipe, and then cooking from the cups — the scale only comes out for the first batch, and after that the converted recipe is a cup recipe. If the amount is awkward, round to the nearest tablespoon: one tablespoon of active dry yeast weighs about 9.0 g, so a couple of spoonfuls either way covers most rounding gaps without anyone noticing in the finished dish.

A preserving or pickling recipe written in grams

A spice mix where the exact balance keeps the flavour right across dozens of jars. Take the 288 g figure first: 288 g of active dry yeast is 2.00 (2 cups), because 288 divided by 144 is 2.00. In practice that means a recipe calling for 2.00 (2 cups) can be weighed out as 288 g and poured or spooned straight in, with no jug to wash. The habit to build is converting once, writing the cup figure on the recipe, and then cooking from the cups — the scale only comes out for the first batch, and after that the converted recipe is a cup recipe. If the amount is awkward, round to the nearest tablespoon: one tablespoon of active dry yeast weighs about 9.0 g, so a couple of spoonfuls either way covers most rounding gaps without anyone noticing in the finished dish.

Measuring active dry yeast the spooned and levelled way

The 144 g figure only holds when active dry yeast is measured the way King Arthur Baking measured it: spooned and levelled. For a dry ingredient, that means spooning it into the cup rather than scooping with the cup itself, then sweeping a knife across the top to level it. Scooping compresses the ingredient and can add a surprising amount of weight to a cup. The difference between the two approaches is not academic: a scooped cup of a powder can weigh 20 to 30 percent more than a spooned and levelled one, which is enough to change a recipe outright.

That is why the headline number on this page is labelled approximate. King Arthur Baking publishes the figure as a standard, and it is the best single number available, but your active dry yeast, your cup and your technique will all nudge it a gram or two in either direction. When the dish is forgiving — a soup, a salad, a roast — that nudge does not matter. When it is a cake, a custard or a batch of dough, weigh the active dry yeast on a kitchen scale and let the grams decide. The cup figure is a convenience for the everyday cook, not a laboratory standard, and treating it that way keeps both the recipe and the cook honest.

What active dry yeast is, and where it is used

Dormant yeast granules that must be dissolved in warm water before use. Breads, pizza dough, rolls and brioche. That versatility is exactly why the conversion keeps coming up: active dry yeast appears in recipes written on both sides of the Atlantic, in both grams and cups, and a cook who can move between the two never has to stop and search mid-recipe. The storage note is worth knowing too: Cool, dry place; refrigerate after opening and check the expiry date.

A note on disputed figures: King Arthur lists instant yeast at 144 g per cup; active dry yeast is sold in 7 g packets and has a similar density. We use 144 g with medium confidence.

Frequently asked questions

How many cups is 144 g of active dry yeast?

About 1 cup — 144 g divided by 144 g per cup. The figure is approximate, because fine powders compact differently depending on how they are spooned.

Would I ever really need a whole cup of active dry yeast?

In a home recipe, almost never — active dry yeast is used by the teaspoon. A full cup is a bulk-cooking quantity, for spice blends, restaurant batches or preserving, where grams are converted to cups for a large mixing bowl.

How should I measure active dry yeast for a normal recipe?

By weight or by spoon, never by the cup. One tablespoon of active dry yeast weighs about 9.0 g, which is the practical unit for everyday cooking.

Why is the spooned-and-levelled method important here?

Because scooping a powder straight from the jar compresses it and can add a quarter or more to the weight. Spoon the powder into the measure and level it with a straight edge.

Does humidity change the weight?

Yes — powders absorb moisture from the air, especially above a stove or in a steamy kitchen, and clump. Store active dry yeast in an airtight jar in a cool, dry place and the conversion stays stable.

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