How Many Grams in 1½ Cups of Peanut Butter?
Precise conversion for baking and cooking.
The exact weight is
375
grams
1½ cups of peanut butter = 375g
· Based on 250g per cup
🔢 Quick Calculator
cups of peanut butter =
375g
Peanut Butter — All Cup-to-Gram Conversions
| Cups | Grams | Ounces |
|---|---|---|
| ⅛ cups | 31g | 1.1 oz |
| ¼ cups | 62g | 2.2 oz |
| ⅓ cups | 83g | 2.9 oz |
| ½ cups | 125g | 4.4 oz |
| ⅔ cups | 167g | 5.9 oz |
| ¾ cups | 188g | 6.6 oz |
| 1 cup | 250g | 8.8 oz |
| 1¼ cups | 312g | 11.0 oz |
| 1½ cups | 375g | 13.2 oz |
| 1¾ cups | 438g | 15.5 oz |
| 2 cups | 500g | 17.6 oz |
| 2½ cups | 625g | 22.0 oz |
| 3 cups | 750g | 26.5 oz |
| 4 cups | 1000g | 35.3 oz |
| 5 cups | 1250g | 44.1 oz |
💡 Pro Tip: Very dense. Stir natural peanut butter before measuring.
Why Weigh Peanut Butter in Grams?
When a recipe calls for 1½ cups of peanut butter, using a kitchen scale to measure exactly 375 grams will give you far more consistent results than volume measurement alone. This is because peanut butter can be packed, sifted, or scooped differently each time, leading to weight variations of up to 20%.
How to Measure Peanut Butter by Weight
Place your mixing bowl on a digital kitchen scale and press "tare" to zero it out. Then add peanut butter until the scale reads 375g. This method is faster than measuring cups and eliminates the guesswork entirely.
Also Known As
Peanut Butter is sometimes referred to as PB, natural peanut butter. The same conversion of 250g per cup applies regardless of the name used.
Frequently Asked Questions
1½ cups of peanut butter weighs exactly 375 grams or approximately 13.2 ounces. This is based on a standard US cup measurement of 250 grams per cup.
Yes, the density of peanut butter (250g 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 (375g), 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.