Peanut Butter Sandwich Calories & Carbs
Last updated September 8, 2026 · Compiled by the CarbMeNot Team

Values per 1 sandwich (2 slices bread + 2 tbsp peanut butter, ~100g), 100g; per 100 g: 35g net carbs, 380 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
How many carbs are in peanut butter sandwich?
Peanut Butter Sandwich — 1 sandwich (2 slices bread + 2 tbsp peanut butter, ~100g), 100g — has 35g net carbs: 38g total carbs minus 3g fiber, plus 14g protein, 20g fat, and 380 calories. Per 100g that is 35g net carbs (38g total carbs, 3g fiber) and 380 calories. That makes peanut butter sandwich high in net carbs and higher than the typical fast-food item, which averages about 26.2g net carbs per 100g. At this carb count, peanut butter sandwich is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Is peanut butter sandwich keto-friendly?
Peanut Butter Sandwich is generally not keto-friendly. 1 sandwich (2 slices bread + 2 tbsp peanut butter, ~100g), 100g is 35g net carbs (38g total carbs − 3g fiber); per 100g that is 35g net carbs. On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 sandwich (2 slices bread + 2 tbsp peanut butter, ~100g) | 35g | 38g | 14g | 380 |
| 100 g (3.5 oz) | 35g | 38g | 14g | 380 |
| 1 oz (28 g) | 9.8g | 10.6g | 3.9g | 106 |
How many calories are in peanut butter sandwich?
Peanut Butter Sandwich — 1 sandwich (2 slices bread + 2 tbsp peanut butter, ~100g), 100g — has 380 calories, with 14g protein, 20g fat, and 35g net carbs. Per 100g: 380 calories and 35g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 380 |
| Total carbs | 38g |
| Net carbs | 35g |
| Fiber | 3g |
| Sugar | 7g |
| Sugar alcohols | 0g |
| Protein | 14g |
| Fat | 20g |
| Sodium | 450mg |
| Potassium | 240mg |
Source: Manufacturer-reported values (bread-grains). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in peanut butter sandwich?
- Peanut Butter Sandwich (1 sandwich (2 slices bread + 2 tbsp peanut butter, ~100g), 100g) has 38g of total carbs and 35g of net carbs. Per 100 grams: 38g total, 35g net.
- How many net carbs are in peanut butter sandwich?
- Peanut Butter Sandwich has 35g of net carbs per 1 sandwich (2 slices bread + 2 tbsp peanut butter, ~100g), 100g — 38g total carbs minus 3g fiber.
- Is peanut butter sandwich keto-friendly?
- Peanut Butter Sandwich is generally not keto-friendly. 1 sandwich (2 slices bread + 2 tbsp peanut butter, ~100g), 100g is 35g net carbs (38g total carbs − 3g fiber); per 100g that is 35g net carbs. On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
- How many calories are in peanut butter sandwich?
- Peanut Butter Sandwich (1 sandwich (2 slices bread + 2 tbsp peanut butter, ~100g), 100g) has 380 calories; that is 380 calories per 100 grams.
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CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.







