Carbs in Tonic
How many carbs are in tonic?
Tonic has 10.1g net carbs per 100g — 10.1g total carbs minus 0g fiber — plus 0g protein, 0g fat, and 39 calories. 1 can (12 fl oz) works out to about 35.9g net carbs and 138 calories. That makes tonic moderate in net carbs and lower than the typical drink, which averages about 21.1g net carbs per 100g. At this carb count, tonic 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.
Keeping an eye on carbs in tonic?
Tonic runs higher in carbs, so portions matter. CarbMeNot tracks every gram from a photo, so you stay under your daily limit without the math.
Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Is tonic keto-friendly?
Tonic is borderline for keto — it works only in small portions. It has 10.1g net carbs per 100g (10.1g total carbs − 0g fiber). A typical serving — 1 can (12 fl oz) — is about 35.9g 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 can (12 fl oz) | 35.9g | 35.9g | 0g | 138 |
| 100 g (3.5 oz) | 10.1g | 10.1g | 0g | 39 |
| 1 oz (28 g) | 2.8g | 2.8g | 0g | 11 |
How many calories are in tonic?
Tonic has 39 calories per 100g. 1 can (12 fl oz) has about 138 calories. That's alongside 0g protein, 0g fat, and 10.1g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 39 |
| Total carbs | 10.1g |
| Net carbs | 10.1g |
| Fiber | 0g |
| Sugar | 9.9g |
| Sugar alcohols | 0g |
| Protein | 0g |
| Fat | 0g |
| Sodium | 14mg |
| Potassium | 0mg |
Source: Open Food Facts (Canada Dry). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in tonic?
- Tonic has 10.1g of total carbs and 10.1g of net carbs per 100 grams.
- How many net carbs are in tonic?
- Tonic has 10.1g of net carbs per 100 grams (total carbs 10.1g minus 0g fiber).
- Is tonic keto-friendly?
- Tonic is borderline for keto — it works only in small portions. It has 10.1g net carbs per 100g (10.1g total carbs − 0g fiber). A typical serving — 1 can (12 fl oz) — is about 35.9g 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 tonic?
- Tonic has 39 calories per 100 grams.
- How many carbs are in 1 can (12 fl oz) of tonic?
- 1 can (12 fl oz) of tonic (355g) has about 35.9g net carbs, 35.9g total carbs, and 138 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.