1 Cup Peanut Butter in Grams: Full Conversion Table
Convert peanut butter from cups to grams and ounces with precision for any recipe.
1 cup of peanut butter weighs 258 grams.
≈ 9.1 oz (weight)
Interactive Converter
1 cup of Peanut butter weighs 258 grams.
258g (9.1 oz)
Level, unpacked US cupPeanut butter
US & UK alternative nameslightly spray the inside of your measuring cup with non-stick cooking spray before scooping the peanut butter.
Prevent packing errorsPeanut butter cups to grams
Complete conversion reference chart for standard US cup measurements to grams and ounces.
| Cups (US) | Grams (g) | Ounces (oz) | Tablespoons (tbsp) |
|---|---|---|---|
| 1/8 cup | 32g | 1.13 oz | 2 tbsp |
| 1/4 cup | 64.5g | 2.3 oz | 4 tbsp |
| 1/3 cup | 85.1g | 3 oz | 5.3 tbsp |
| 1/2 cup | 129g | 4.6 oz | 8.1 tbsp |
| 2/3 cup | 172.9g | 6.1 oz | 10.8 tbsp |
| 3/4 cup | 193.5g | 6.8 oz | 12.1 tbsp |
| 1 cup | 258g | 9.1 oz | 16.1 tbsp |
| 1 1/2 cups | 387g | 13.7 oz | 24.2 tbsp |
| 2 cups | 516g | 18.2 oz | 32.3 tbsp |
| 3 cups | 774g | 27.3 oz | 48 tbsp |
| 4 cups | 1032g | 36.4 oz | 64 tbsp |
| 5 cups | 1290g | 45.5 oz | 80 tbsp |
| Weight (Grams) | Cups (US) | Ounces (oz) | Tablespoons (tbsp) |
|---|---|---|---|
| 25g | < 1/8 cup (0.10) | 0.88 oz | 1.55 tbsp |
| 50g | ≈ 1/4 cup (0.19) | 1.76 oz | 3.1 tbsp |
| 75g | ≈ 1/4 cup (0.29) | 2.65 oz | 4.65 tbsp |
| 100g | ≈ 1/2 cup (0.39) | 3.53 oz | 6.2 tbsp |
| 125g | ≈ 1/2 cup (0.48) | 4.41 oz | 7.75 tbsp |
| 150g | ≈ 1/2 cup (0.58) | 5.29 oz | 9.3 tbsp |
| 200g | ≈ 3/4 cup (0.78) | 7.05 oz | 12.4 tbsp |
| 250g | ≈ 1 cup (0.97) | 8.82 oz | 15.5 tbsp |
| 300g | ≈ 1 1/4 cups (1.16) | 10.58 oz | 18.6 tbsp |
| 350g | ≈ 1 1/4 cups (1.36) | 12.35 oz | 21.71 tbsp |
| 400g | ≈ 1 1/2 cups (1.55) | 14.11 oz | 24.81 tbsp |
| 500g | ≈ 2 cups (1.94) | 17.64 oz | 31.01 tbsp |
1 cup of peanut butter weighs 258 grams. Peanut butter packs unevenly in a cup — natural peanut butter in particular can leave air pockets or be denser depending on how well it's been stirred. For consistent results in baking, weigh it. 1 tablespoon of peanut butter weighs 16 grams.
How to measure peanut butter accurately
lightly spray the inside of your measuring cup with non-stick cooking spray before scooping the peanut butter. This will help it slide out easily and give you a more accurate measurement without the mess.
For the most accurate results, weigh your peanut butter with a digital kitchen scale — the values below assume a level, unpacked cup.
Peanut butter ounces to grams
| Ounces | Grams | Cups |
|---|---|---|
| 1 oz | 28.4g | 0.1 cups |
| 2 oz | 56.7g | 0.2 cups |
| 3 oz | 85.1g | 0.3 cups |
| 4 oz | 113.4g | 0.4 cups |
| 6 oz | 170.1g | 0.7 cups |
| 8 oz | 226.8g | 0.9 cups |
| 10 oz | 283.5g | 1.1 cups |
| 12 oz | 340.2g | 1.3 cups |
| 16 oz | 453.6g | 1.8 cups |
Peanut butter tablespoons to grams
| Tablespoons | Grams |
|---|---|
| 16 tablespoons | 256g |
| 12 tablespoons | 192g |
| 8 tablespoons | 128g |
| 4 tablespoons | 64g |
| 2 tablespoons | 32g |
| 1 tablespoon | 16g |
Frequently asked questions
How many grams in 1 cup of peanut butter?
1 cup of peanut butter weighs 258g.
How many grams is 1/4 cup of peanut butter?
1/4 cup of peanut butter weighs 64.5g.
How many grams is 1/3 cup of peanut butter?
1/3 cup of peanut butter weighs 85.14g.
How many grams is 1/2 cup of peanut butter?
1/2 cup of peanut butter weighs 129g.
How many grams is 2 tablespoons of peanut butter?
2 tablespoons of peanut butter weighs 32g.
How many grams is 1 tablespoon of peanut butter?
1 tablespoon of peanut butter weighs 16g.
How many ounces in a cup of peanut butter?
1 cup of peanut butter weighs approximately 9.1 ounces (258g).
How many cups is 100g of peanut butter?
100g of peanut butter is approximately 0.39 cups.
How many cups are in a 1 lb jar of peanut butter?
A 1 lb (16 ounce) jar of peanut butter contains approximately 1.76 cups.
How many cups of peanut butter are in a 2 lb jar?
A 2 lb (32 ounce) jar of peanut butter contains approximately 3.52 cups.
How would you measure 1/2 cup of peanut butter?
The most accurate way to measure peanut butter is by weighing it on a digital kitchen scale. If using cups, lightly spray the inside of your measuring cup with non-stick cooking spray before scooping the peanut butter. This will help it slide out easily and give you a more accurate measurement without the mess.
How many tablespoons equal a cup of peanut butter?
There are exactly 16 tablespoons in 1 cup of peanut butter.
Practical baking & cooking tips for peanut butter
- Weigh directly on your scale using the tare function to bypass measuring cups completely.
- Natural peanut butter (peanuts and salt only) separates; stir thoroughly and store upside down to distribute oil before weighing.
- Conventional peanut butter contains hydrogenated oils and sugar, holding firmer in cookie dough than natural styles.
Common substitutions for peanut butter
| Substitute | Ratio | Kitchen Notes |
|---|---|---|
| Almond butter | 1:1 by weight (250g) | Nutty, slightly milder flavour profile; ideal for peanut allergies |
| Sunflower seed butter | 1:1 by weight (250g) | Nut-free school-safe substitute; may turn green when baked with baking soda due to chlorophyll |
Why accuracy matters for peanut butter
Peanut butter is extremely thick and sticky. Measuring by cup leaves substantial residue on the spoon and walls, leading to under-measuring by up to 30g per cup. Weighing directly into the bowl avoids mess and preserves moisture balance.
Who needs grams for peanut butter?
Cookie bakers, protein smoothie preppers, and satay sauce cooks.
Common mistakes to avoid with peanut butter
- Using natural peanut butter without stirring, leading to oily or dry results.
- Not adjusting sugar when substituting peanut butter in recipes.
- Using peanut butter with added salt in recipes that call for unsalted versions.
- Trying to measure peanut butter in a dry measuring cup without preparing it first. It sticks and creates a mess.
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