American Cheese Slice Calories & Carbs
Keto-friendlyLast updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1 slice (21g), 21g; per 100 g: 4.8g net carbs, 333 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 american cheese slice?
American Cheese Slice — 1 slice (21g), 21g — has 1g net carbs: 1g total carbs minus 0g fiber, plus 3g protein, 5g fat, and 70 calories. Per 100g that is 4.8g net carbs (4.8g total carbs, 0g fiber) and 333 calories. That makes american cheese slice relatively low in net carbs and lower than the typical dairy food, which averages about 24.2g net carbs per 100g. With this carb count, american cheese slice fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Is american cheese slice keto-friendly?
Yes — american cheese slice is keto-friendly. 1 slice (21g), 21g is 1g net carbs (1g total carbs − 0g fiber); per 100g that is 4.8g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other dairy foods and meals.
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Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 slice (21g) | 1g | 1g | 3g | 70 |
| 100 g (3.5 oz) | 4.8g | 4.8g | 14.3g | 333 |
| 1 oz (28 g) | 1.3g | 1.3g | 4g | 93 |
How many calories are in american cheese slice?
American Cheese Slice — 1 slice (21g), 21g — has 70 calories, with 3g protein, 5g fat, and 1g net carbs. Per 100g: 333 calories and 4.8g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 333 |
| Total carbs | 4.8g |
| Net carbs | 4.8g |
| Fiber | 0g |
| Sugar | 4.8g |
| Sugar alcohols | 0g |
| Protein | 14.3g |
| Fat | 23.8g |
| Sodium | 1190mg |
| Potassium | 167mg |
Source: Manufacturer-reported values (dairy). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in american cheese slice?
- American Cheese Slice (1 slice (21g), 21g) has 1g of total carbs and 1g of net carbs. Per 100 grams: 4.8g total, 4.8g net.
- How many net carbs are in american cheese slice?
- American Cheese Slice has 1g of net carbs per 1 slice (21g), 21g — 1g total carbs minus 0g fiber.
- Is american cheese slice keto-friendly?
- Yes — american cheese slice is keto-friendly. 1 slice (21g), 21g is 1g net carbs (1g total carbs − 0g fiber); per 100g that is 4.8g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other dairy foods and meals.
- How many calories are in american cheese slice?
- American Cheese Slice (1 slice (21g), 21g) has 70 calories; that is 333 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.