How Much Is 129 Grams of Peanut Butter in Cups?
129 grams of peanut butter equals 0.50 cups. Peanut butter has a density of 258g per cup. Because grams measure weight and cups measure volume, the result depends on the ingredient's density.
Formula and Step-by-Step
- Start with 129 grams of peanut butter
- 1 cup of peanut butter = 258g
- 129g ÷ 258g/cup = 0.5 cups
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
Peanut butter weighs 258g per cup. Natural and processed versions may have slightly different densities.
Peanut Butter at Different Amounts
How peanut butter scales across common grams measurements. Your amount (129 grams) is highlighted.
Other Amounts of Peanut Butter
| Grams | US Cups | Metric Cup | Imperial Cup |
|---|---|---|---|
| 5 grams | 0.02 cups | 0.02 cups | 0.02 cups |
| 10 grams | 0.04 cups | 0.04 cups | 0.03 cups |
| 25 grams | 0.10 cups | 0.09 cups | 0.08 cups |
| 50 grams | 0.19 cups | 0.18 cups | 0.16 cups |
| 75 grams | 0.29 cups | 0.28 cups | 0.24 cups |
| 100 grams | 0.39 cups | 0.37 cups | 0.32 cups |
| 129 grams | 0.50 cups | 0.47 cups | 0.42 cups |
| 150 grams | 0.58 cups | 0.55 cups | 0.48 cups |
| 200 grams | 0.78 cups | 0.73 cups | 0.65 cups |
| 250 grams | 0.97 cups | 0.92 cups | 0.81 cups |
| 500 grams | 1.94 cups | 1.83 cups | 1.61 cups |
Understanding the Units
What is a Gram?
Weighing ingredients in grams eliminates the variability of volume measurements. A cup of flour can weigh anywhere from 120g to 160g depending on how it was scooped, but 120g of flour is always 120g of flour.
What is a Cup?
In US cooking, a cup measures volume, not weight. One standard US cup holds 236.588 ml of liquid. Because different ingredients have different densities, a cup of one ingredient can weigh very differently from a cup of another.