A Peanut Butter Sandwich Has About 12–13 g of Protein
Two slices of bread plus 2 tablespoons of peanut butter provide about 12–13 g protein in cited label examples. Calculate your exact sandwich.
A peanut butter sandwich made with 2 slices of bread and 2 tablespoons (32–33 g) of peanut butter has about 12–13 g of protein in the label examples below. The product pages were accessed September 27, 2026.
That estimate assumes a full 2-tablespoon serving—not a thin 1-tablespoon spread—and counts the protein in the bread as well as the peanut butter.
Protein breakdown
| Ingredient | Portion | Protein |
|---|---|---|
| Peanut butter | 2 tbsp (32–33 g) | 7–8 g |
| Bread | 2 slices | 5 g in the two cited labels |
| Sandwich total | 12–13 g |
For one concrete combination, Jif Creamy lists 7 g protein per 2 tablespoons (33 g), while Wonder Classic White lists 5 g per 2 slices. Together, that sandwich contains 12 g protein, before counting any other filling (Jif; Wonder label supplied through Giant Food).
Using Smucker’s Natural Creamy instead raises the example to 13 g: its label lists 8 g protein per 2 tablespoons (32 g), and two slices of Healthy Life Whole Wheat list 5 g (Smucker’s; Lewis Bake Shop).
These are product-specific examples, not a rule that white and whole-wheat breads always have the same protein. Slice weight and recipe differ, so use the bread package in front of you.
If you use only 1 tablespoon of peanut butter
A sandwich with 1 tablespoon of peanut butter has roughly 8.5–9 g protein when made with bread providing 5 g per two slices:
- Half a serving of Jif: about 3.5 g
- Half a serving of Smucker’s Natural: about 4 g
- Two example bread slices: 5 g
Because label values are rounded, dividing them produces an estimate rather than a laboratory-precise result.
Calculate the protein in your sandwich
Use each package’s serving size and this formula:
Protein eaten = (amount eaten ÷ labeled serving amount) × protein per serving
If you spread 40 g of Jif rather than its labeled 33 g serving:
40 ÷ 33 × 7 = 8.5 g protein from peanut butter
Add 5 g from the bread, and the sandwich comes to approximately 13.5 g protein. Weighing the spread is more reliable than estimating a heaped spoon; peanut butter cup and spoon conversions also depend on the product and packing. See peanut butter weight conversions for that distinction.
For a peanut butter and jelly sandwich, calculate the same bread-and-peanut-butter base, then add whatever the jelly’s label shows for your portion. For the most accurate log, match the exact products and serving weights rather than entering a generic “peanut butter sandwich.”