Density
1.08 g/ml
Peanut Butter
Nuts & SeedsGround roasted peanuts, sometimes with added salt, sugar, and oil. Dense and protein-rich.
Peanut butter is dense, sticky, and highly brand-dependent. Stabilized peanut butter, natural peanut butter, and freshly ground peanut butter can all fill a cup differently and behave differently in dough.
Peanut butter density at a glance
CupOrGram uses 258g per cup for peanut butter. Because it is sticky and packable, weight is usually easier than scraping a measuring cup clean.
1 cup
258g
1 tbsp
16g
Also Called
pbnatural peanut butter
Properties
Density Index
1.08 g/cm3
1 Cup Weight
258g
Texture
Solid
Category
Nut
Top Substitute
Almond Butter
Use 1:1
Very similar consistency and fat content. Milder flavour.
Most-used links for Peanut Butter
Conversion
Peanut Butter cups to grams
1 cup = 258g
Conversion
Peanut Butter grams to cups
Reverse the most common baking lookup.
Conversion
Peanut Butter tablespoons to grams
Useful for small-batch adjustments and spoon measures.
Conversion
Peanut Butter cups to ounces
High-volume cup-to-ounce lookup with ingredient density.
Conversion
Peanut Butter ml to cups
For metric volume recipes that need US cup equivalents.
Conversion
Peanut Butter tablespoons to ounces
Useful when small spoon measures need weight scaling.
Best Substitute
Almond Butter
Use 1:1 for the closest starting point.
Where Peanut Butter shines
- Cookies, bars, frostings, sauces, and fillings where peanut flavor and fat both matter.
- Recipes that need spoon-to-gram conversions because peanut butter clings to measuring tools.
- Scaling from jar measurements into gram-based baking formulas.
What to watch
- Natural peanut butter can separate, so stir thoroughly before measuring.
- Sweetened or stabilized brands can make cookies spread differently from natural peanut butter.
- Packed tablespoons are easy to overfill because peanut butter mounds above the spoon.
Conversions
| cups | grams |
|---|---|
| 1/4 cups | 65.0 grams |
| 1/3 cups | 85.0 grams |
| 1/2 cups | 129 grams |
| 1 cups | 258 grams |
| 1.50 cups | 387 grams |
| 2 cups | 516 grams |
| 3 cups | 774 grams |
| 4 cups | 1032 grams |
Figures use the US cup (236.6 ml).
Density: 1.08 g/ml
Quick Convert
Ingredient-specific, density-based conversions for baking
1 cups of Peanut Butter equals 256 grams
Ingredient-specific · density-based
Cup size
Based on us cup (236.6 ml) · density data from baking references and our own measurements.Recommended Tools & Pantry Picks for Peanut Butter
Optional shopping references for bakers who want to compare tools and pantry options related to peanut butter.
Digital Kitchen Scale
Essential for cup-to-gram accuracy and repeatable bakes.
Shop scales ↗Measuring Cup & Spoon Set
Useful for quick volume checks before converting to weight.
Shop measuring sets ↗Disclosure: Some outbound links are affiliate links. As an Amazon Associate, CupOrGram earns from qualifying purchases. Learn more.
Substitutions for Peanut Butter
Almond Butter
excellent1:1
Very similar consistency and fat content. Milder flavour.
Very similar consistency and fat content. Milder flavour.
Sunflower Seed Butter
good1:1
Nut-free alternative. Note: can turn green when mixed with baking soda (harmless chlorophyll reaction).
Nut-free alternative. Note: can turn green when mixed with baking soda (harmless chlorophyll reaction).
Storage Tips
Room temperature (processed) or refrigerator (natural). Lasts 3-6 months after opening.
Baking Science
50% fat, 25% protein. Natural PB separates because it lacks emulsifiers. In cookies, acts as both fat and structure, enabling flourless cookies.
Recipe Notes
Cookies
Peanut butter adds fat, protein, and solids, so brand changes can affect spread and tenderness.
Frosting
Stabilized peanut butter blends more smoothly than oily natural peanut butter in many buttercreams.
Sauces
Gram measurements help when thinning peanut butter with water, milk, soy sauce, or syrup.
Common Pitfalls
- Switching brands without re-checking weight can change texture and bake time.
- Using volume-only measurements for dense ingredients can overshoot recipe targets.
Brand Variance & Measuring Method
Baseline reference: 1 cup peanut butter = 258g. In real kitchens, a practical range is usually 235g-281g per cup (9% band).
Why this happens: cut size, grind consistency, and oil content alter packing behavior.
Figures use the US cup (236.6 ml).Common Questions
How many grams is 1 tablespoon of peanut butter?
1 tablespoon of peanut butter is about 16 grams using CupOrGram's baseline.
How many ounces is 1 cup of peanut butter?
1 cup of peanut butter is about 9.1 ounces by weight.
Does natural peanut butter weigh the same as regular peanut butter?
It is close, but oil separation and grind can change how it packs. Stir natural peanut butter well before weighing or spooning.
How many grams is 1 cup of peanut butter?
1 cup of peanut butter weighs 258 grams.
Explore Peanut Butter Further
Reference
See peanut butter in the full measurement table
Cup, tablespoon, and teaspoon weights for all ingredients, sourced and cross-checked.