Black Coffee Calories & Carbs
Keto-friendlyLast updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 8 fl oz (1 cup), 240g; per 100 g: 0g net carbs, 1 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 black coffee?
Black Coffee — 8 fl oz (1 cup), 240g — has 0g net carbs: 0g total carbs minus 0g fiber, plus 0g protein, 0g fat, and 2 calories. Per 100g that is 0g net carbs (0g total carbs, 0g fiber) and 1 calories. With this carb count, black coffee 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 black coffee keto-friendly?
Yes — black coffee is keto-friendly. 8 fl oz (1 cup), 240g is 0g net carbs (0g total carbs − 0g fiber); per 100g that is 0g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other foods and meals.
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Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 8 fl oz (1 cup) | 0g | 0g | 0g | 2 |
| 100 g (3.5 oz) | 0g | 0g | 0g | 1 |
| 1 oz (28 g) | 0g | 0g | 0g | 0 |
How many calories are in black coffee?
Black Coffee — 8 fl oz (1 cup), 240g — has 2 calories, with 0g protein, 0g fat, and 0g net carbs. Per 100g: 1 calories and 0g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 1 |
| Total carbs | 0g |
| Net carbs | 0g |
| Fiber | 0g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 0g |
| Fat | 0g |
| Sodium | 2mg |
| Potassium | 48mg |
Source: Manufacturer-reported values (drinks). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in black coffee?
- Black Coffee (8 fl oz (1 cup), 240g) has 0g of total carbs and 0g of net carbs. Per 100 grams: 0g total, 0g net.
- How many net carbs are in black coffee?
- Black Coffee has 0g of net carbs per 8 fl oz (1 cup), 240g — 0g total carbs minus 0g fiber.
- Is black coffee keto-friendly?
- Yes — black coffee is keto-friendly. 8 fl oz (1 cup), 240g is 0g net carbs (0g total carbs − 0g fiber); per 100g that is 0g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other foods and meals.
- How many calories are in black coffee?
- Black Coffee (8 fl oz (1 cup), 240g) has 2 calories; that is 1 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.