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Baking powder: cups to grams
1 cup of baking powder = 221 grams (7.8 oz). 1 tablespoon = 14 g, 1 teaspoon = 4.6 g.
Fractions work: 1/3, 1 1/2
Baking powder cups to grams chart
| US cups | Grams | Ounces |
|---|---|---|
| 1/8 cup | 28 g | 0.97 oz |
| 1/4 cup | 55 g | 1.9 oz |
| 1/3 cup | 74 g | 2.6 oz |
| 1/2 cup | 110 g | 3.9 oz |
| 2/3 cup | 147 g | 5.2 oz |
| 3/4 cup | 166 g | 5.8 oz |
| 1 cup | 221 g | 7.8 oz |
| 1 1/2 cups | 331 g | 11.7 oz |
| 2 cups | 442 g | 15.6 oz |
| 3 cups | 662 g | 23.4 oz |
| 4 cups | 883 g | 31.2 oz |
Tablespoons and teaspoons
| Spoon measure | Grams |
|---|---|
| 1 teaspoon | 4.6 g |
| 2 teaspoons | 9.2 g |
| 1 tablespoon | 14 g |
| 2 tablespoons | 28 g |
| 3 tablespoons | 41 g |
| 4 tablespoons (1/4 cup) | 55 g |
Baking powder grams to cups
| Grams | US cups (decimal) | Closest kitchen measure |
|---|---|---|
| 25 g | 0.11 | 2 tbsp |
| 50 g | 0.23 | 3.5 tbsp |
| 100 g | 0.45 | 1/3 cup + 2 tbsp |
| 125 g | 0.57 | 1/2 cup + 1 tbsp |
| 150 g | 0.68 | 2/3 cup |
| 200 g | 0.91 | 3/4 cup + 2.5 tbsp |
| 250 g | 1.13 | 1 cup + 2 tbsp |
| 300 g | 1.36 | 1 1/3 cups + 0.5 tbsp |
| 400 g | 1.81 | 1 3/4 cups + 1 tbsp |
| 500 g | 2.26 | 2 1/4 cups |
| 750 g | 3.40 | 3 1/3 cups + 1 tbsp |
| 1000 g | 4.53 | 4 1/2 cups + 0.5 tbsp |
"Closest kitchen measure" rounds down to the nearest standard cup size, then makes up the rest in tablespoons, to the nearest half tablespoon.
Where this number comes from
The weight is taken from the USDA FoodData Central SR Legacy record "Leavening agents, baking powder, double-acting, sodium aluminum sulfate" (FDC ID 172803), portion "1 tsp" = 4.6 g. The USDA lists this ingredient by the teaspoon, so the cup figure is scaled up (48 tsp = 1 cup). US cups are 236.59 mL. A metric cup (250 mL) holds about 233 g, and a UK imperial cup (284 mL) about 265 g.
Real kitchens vary. Brand, humidity, how finely something is ground and how hard you pack the cup can all move the weight by 5–15%. If a recipe author gives grams, use their number.