How Many Grams in 1½ Cups of Baking Soda?
Precise conversion for baking and cooking.
The exact weight is
432
grams
1½ cups of baking soda = 432g
· Based on 288g per cup
🔢 Quick Calculator
cups of baking soda =
432g
Baking Soda — All Cup-to-Gram Conversions
| Cups | Grams | Ounces |
|---|---|---|
| ⅛ cups | 36g | 1.3 oz |
| ¼ cups | 72g | 2.5 oz |
| ⅓ cups | 96g | 3.4 oz |
| ½ cups | 144g | 5.1 oz |
| ⅔ cups | 192g | 6.8 oz |
| ¾ cups | 216g | 7.6 oz |
| 1 cup | 288g | 10.2 oz |
| 1¼ cups | 360g | 12.7 oz |
| 1½ cups | 432g | 15.2 oz |
| 1¾ cups | 504g | 17.8 oz |
| 2 cups | 576g | 20.3 oz |
| 2½ cups | 720g | 25.4 oz |
| 3 cups | 864g | 30.5 oz |
| 4 cups | 1152g | 40.6 oz |
| 5 cups | 1440g | 50.8 oz |
💡 Pro Tip: 4x stronger than baking powder. Needs an acid (buttermilk, vinegar) to activate.
Why Weigh Baking Soda in Grams?
When a recipe calls for 1½ cups of baking soda, using a kitchen scale to measure exactly 432 grams will give you far more consistent results than volume measurement alone. This is because baking soda can be packed, sifted, or scooped differently each time, leading to weight variations of up to 20%.
How to Measure Baking Soda by Weight
Place your mixing bowl on a digital kitchen scale and press "tare" to zero it out. Then add baking soda until the scale reads 432g. This method is faster than measuring cups and eliminates the guesswork entirely.
Also Known As
Baking Soda is sometimes referred to as bicarbonate of soda, sodium bicarbonate. The same conversion of 288g per cup applies regardless of the name used.
Frequently Asked Questions
1½ cups of baking soda weighs exactly 432 grams or approximately 15.2 ounces. This is based on a standard US cup measurement of 288 grams per cup.
Yes, the density of baking soda (288g per cup) is consistent across brands. Minor variations of ±5% may occur depending on grind, moisture, and how the ingredient is packed into the cup — which is exactly why weighing with a scale is recommended.
If measuring by cups, whether you sift can change the weight by 10-20%. When measuring by weight (432g), sifting doesn't affect accuracy since you're targeting an exact gram amount regardless of volume.
This conversion uses the US standard cup (236.6ml, commonly rounded to 240ml). If you're using a metric cup (250ml), the weight will be slightly higher. For perfect accuracy, always use a kitchen scale.