Grams to cups for baking powder
One US cup of baking powder weighs about 192 g, so 100 g is about 0.52 cups (1/2 cup). Measured level, no packing. The calculator and table below use this figure for any amount.
Conversion table
| Grams | Cups | Closest kitchen measure |
|---|---|---|
| 25 g | 0.13 | 1/8 cup |
| 50 g | 0.26 | 1/4 cup |
| 75 g | 0.39 | 3/8 cup |
| 100 g | 0.52 | 1/2 cup |
| 125 g | 0.65 | 2/3 cup |
| 150 g | 0.78 | 3/4 cup |
| 200 g | 1.04 | 1 cup |
| 250 g | 1.3 | 1 cup + 1/3 |
| 300 g | 1.56 | 1 cup + 1/2 |
| 400 g | 2.08 | 2 cups + 1/8 |
| 500 g | 2.6 | 2 cups + 5/8 |
How to measure it
Baking powder is measured in teaspoons, not cups, but the density still matters: one level teaspoon weighs about 4 g, which scales to 192 g a cup. Metric recipes often give it in grams, and 4 g per teaspoon is the conversion to remember.
Level it with a straight edge. A heaped teaspoon can carry half again as much powder, and too much baking powder makes cakes rise fast then collapse with a bitter aftertaste.
Baking soda is denser at about 4.8 g a teaspoon, and the two are not interchangeable. Soda is roughly three times stronger and needs acid in the recipe to work.
Density source: Manufacturer packaging (4 g per teaspoon). Method assumed: Levelled, never packed. Weigh small amounts if you can.
Questions about baking powder
Other ingredients
See also: why conversion charts disagree and the full density data.