Carbs in Diet Coke
Keto-friendlyHow many carbs are in diet coke?
Diet Coke has 0g net carbs per 100g — 0g total carbs minus 0g fiber — plus 0g protein, 0g fat, and 0 calories. 1 can (355ml / 12 fl oz) works out to about 0g net carbs and 0 calories. That makes diet coke very low in net carbs and lower than the typical drink, which averages about 21.0g net carbs per 100g. With this carb count, diet coke fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
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Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Is diet coke keto-friendly?
Yes — diet coke is keto-friendly. It has 0g net carbs per 100g (0g total carbs − 0g fiber). A typical serving — 1 can (355ml / 12 fl oz) — is about 0g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other drinks and meals.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 can (355ml / 12 fl oz) | 0g | 0g | 0g | 0 |
| 100 g (3.5 oz) | 0g | 0g | 0g | 0 |
| 1 oz (28 g) | 0g | 0g | 0g | 0 |
How many calories are in diet coke?
Diet Coke has 0 calories per 100g. 1 can (355ml / 12 fl oz) has about 0 calories. That's alongside 0g protein, 0g fat, and 0g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 0 |
| Total carbs | 0g |
| Net carbs | 0g |
| Fiber | 0g |
| Sugar | 0g |
| Sugar alcohols | 0g |
| Protein | 0g |
| Fat | 0g |
| Sodium | 11mg |
| Potassium | 0mg |
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 diet coke?
- Diet Coke has 0g of total carbs and 0g of net carbs per 100 grams.
- How many net carbs are in diet coke?
- Diet Coke has 0g of net carbs per 100 grams (total carbs 0g minus 0g fiber).
- Is diet coke keto-friendly?
- Yes — diet coke is keto-friendly. It has 0g net carbs per 100g (0g total carbs − 0g fiber). A typical serving — 1 can (355ml / 12 fl oz) — is about 0g net carbs. On a standard keto diet (20–50g net carbs per day), that leaves plenty of room for other drinks and meals.
- How many calories are in diet coke?
- Diet Coke has 0 calories per 100 grams.
- How many carbs are in 1 can (355ml / 12 fl oz) of diet coke?
- 1 can (355ml / 12 fl oz) of diet coke (369g) has about 0g net carbs, 0g total carbs, and 0 calories.
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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.