Carbs in Peanut Butter Banana Sandwich

How many carbs are in peanut butter banana sandwich?

Peanut Butter Banana Sandwich has 42.2g net carbs per 100g — 51.1g total carbs minus 8.9g fiber — plus 11.1g protein, 24.4g fat, and 467 calories. That makes peanut butter banana sandwich high in net carbs and higher than the typical fast-food item, which averages about 26.5g net carbs per 100g. At this carb count, peanut butter banana sandwich is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from Open Food Facts; net carbs are computed by CarbMeNot.

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Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

Peanut Butter Banana Sandwich
42.2g
Net carbs
51.1g
Total carbs
8.9g
Fiber
11.1g
Protein
24.4g
Fat
467
Calories

Values per 100 g.

Is peanut butter banana sandwich keto-friendly?

Not really

Peanut Butter Banana Sandwich is generally not keto-friendly. It has 42.2g net carbs per 100g (51.1g total carbs − 8.9g fiber). 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

ServingNet carbsTotal carbsCalories
100 g (3.5 oz)42.2g51.1g467
1 oz (28 g)11.8g14.3g131

How many calories are in peanut butter banana sandwich?

Peanut Butter Banana Sandwich has 467 calories per 100g. That's alongside 11.1g protein, 24.4g fat, and 42.2g net carbs per 100g.

Nutrition facts

NutrientAmount (per 100 g)
Calories467
Total carbs51.1g
Net carbs42.2g
Fiber8.9g
Sugar35.6g
Sugar alcohols0g
Protein11.1g
Fat24.4g
Sodium144mg
Potassium0mg

Source: Open Food Facts (Generic). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.

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Frequently asked questions

How many carbs are in peanut butter banana sandwich?
Peanut Butter Banana Sandwich has 51.1g of total carbs and 42.2g of net carbs per 100 grams.
How many net carbs are in peanut butter banana sandwich?
Peanut Butter Banana Sandwich has 42.2g of net carbs per 100 grams (total carbs 51.1g minus 8.9g fiber).
Is peanut butter banana sandwich keto-friendly?
Peanut Butter Banana Sandwich is generally not keto-friendly. It has 42.2g net carbs per 100g (51.1g total carbs − 8.9g fiber). 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 banana sandwich?
Peanut Butter Banana Sandwich has 467 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.