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1 US cup = 240 ml, 1 tablespoon = 15 ml, 1 teaspoon = 5 ml. Figures verified 5 August 2026. https://cupsngrams.com/baking-powder
Baking Powder: Cups to Grams
One US cup (240 ml) of baking powder weighs 192 grams; half a cup weighs 96 grams. A quarter cup is 48 grams, a tablespoon is 12 grams and a teaspoon is 4 grams. A cup measures volume, not weight, so these numbers are for baking powder only: a cup of honey weighs 340 grams.
192 g
1 cup of baking powder = 192 g (US legal cup, 240 ml)
1 cup of baking powder = 192 g (US legal cup, 240 ml)
Based on baking powder at 192 g per US cup.
CupsToGrams, cupsngrams.com
Baking from a UK, Australian or New Zealand recipe? Their cup is not the American one. Pick the standard your recipe assumes and every cup figure follows it.
Baking Powder conversion table
| Cups | Cups (decimal) | Grams | Tablespoons | Millilitres | Ounces (weight) |
|---|---|---|---|---|---|
| 1/8 cup | 0.125 | 24 g | 2 tbsp | 30 ml | 0.847 oz |
| 1/4 cup | 0.25 | 48 g | 4 tbsp | 60 ml | 1.69 oz |
| 1/3 cup | 0.33 | 64 g | 5.33 tbsp | 80 ml | 2.26 oz |
| 1/2 cup | 0.5 | 96 g | 8 tbsp | 120 ml | 3.39 oz |
| 2/3 cup | 0.67 | 128 g | 10.7 tbsp | 160 ml | 4.52 oz |
| 3/4 cup | 0.75 | 144 g | 12 tbsp | 180 ml | 5.08 oz |
| 1 cup | 1 | 192 g | 16 tbsp | 240 ml | 6.77 oz |
| 1 1/4 cups | 1.25 | 240 g | 20 tbsp | 300 ml | 8.47 oz |
| 1 1/3 cups | 1.33 | 256 g | 21.3 tbsp | 320 ml | 9.03 oz |
| 1 1/2 cups | 1.5 | 288 g | 24 tbsp | 360 ml | 10.2 oz |
| 1 2/3 cups | 1.67 | 320 g | 26.7 tbsp | 400 ml | 11.3 oz |
| 1 3/4 cups | 1.75 | 336 g | 28 tbsp | 420 ml | 11.9 oz |
| 2 cups | 2 | 384 g | 32 tbsp | 480 ml | 13.5 oz |
| 2 1/4 cups | 2.25 | 432 g | 36 tbsp | 540 ml | 15.2 oz |
| 2 1/2 cups | 2.5 | 480 g | 40 tbsp | 600 ml | 16.9 oz |
| 3 cups | 3 | 576 g | 48 tbsp | 720 ml | 20.3 oz |
| 3 2/3 cups | 3.67 | 704 g | 58.7 tbsp | 880 ml | 24.8 oz |
Ounces here are ounces of weight (1 oz = 28.35 g), not fluid ounces. One US cup is 8 fluid ounces of volume whatever is in it, but what it weighs in ounces depends on the ingredient: a cup of baking powder weighs about 6.77 oz. Why these two are not the same. Decimals for thirds are rounded (1/3 cup is 0.333 cups), and each linked amount opens a page comparing every ingredient at that measure.
Cite this: CupsToGrams, "Baking Powder: Cups to Grams", https://cupsngrams.com/baking-powder, figures verified . The data is free to reuse under CC BY 4.0 with a link back to this page.
About measuring baking powder
Baking powder is a blend of baking soda, an acid and a little starch, so it is slightly lighter than pure baking soda. A full cup weighs about 192 grams, but as with soda you almost always work in teaspoons, where one teaspoon is close to 4 grams. Because it loses potency over time, both the amount and the freshness matter. If your bakes have stopped rising well, old baking powder measured by an inaccurate spoon is a common culprit.
Baking powder weakens with age. Measure it accurately and replace it every six to twelve months.
How many grams is a cup of baking powder?
One US cup (240 ml) of baking powder weighs about 192 grams. Because a cup measures volume rather than weight, that figure is specific to baking powder and does not transfer to any other ingredient: the same cup holds 125 grams of all-purpose flour and 340 grams of honey.
- 1/4 cup of baking powder is about 48 grams
- 1/3 cup of baking powder is about 64 grams
- 1/2 cup of baking powder is about 96 grams
- 2/3 cup of baking powder is about 128 grams
- 3/4 cup of baking powder is about 144 grams
- 1 1/2 cups of baking powder is about 288 grams
- 2 cups of baking powder is about 384 grams
- 3 cups of baking powder is about 576 grams
Working the other way round, 100 grams of baking powder is about 0.521 cups, and 500 grams is about 2.6 cups.
Does it matter which cup my recipe means?
It does, though less than the ingredient itself. This page uses the US legal cup of 240 ml. An Australian metric cup is 250 ml, so a metric cup of baking powder comes to about 200 grams, and the old British imperial cup of 284.1 ml holds about 227 grams. See cup sizes by country for every standard side by side.
Frequently asked questions
How many grams is 1 cup of baking powder?
One US cup of baking powder is about 192 grams. It is a little lighter than baking soda because it contains starch and acid as well.
How many grams is a teaspoon of baking powder?
About 4 grams. A teaspoon is the usual working measure, since recipes rarely need more than a spoonful or two.
Can I substitute baking soda for baking powder?
Not directly. Baking soda is far stronger and needs an added acid. Swapping them by weight will throw off both the rise and the taste.
Where this figure comes from
We have not yet found a published reference that states a weight for a cup of baking powder. The 192 grams on this page follows the calibration the rest of the site is built on, with butter at 227 grams per cup, water at 240, all-purpose flour at 125 and granulated sugar at 200. Treat it as a good working figure rather than a cited one. If you have a better source, tell us and we will check it and credit you.
Published figures for the same ingredient vary between references anyway, because how an ingredient is packed changes what a cup of it weighs. Treat any cup figure as accurate to within a few percent, and weigh on a scale when a recipe is sensitive. Our full approach is on the methodology page.
Figures last verified . Compiled by the CupsToGrams editorial team at FusionStudios. Spotted a value that looks off? Tell us.