Carbs in Jack in the Box Taco
How many carbs are in jack in the box taco?
Jack in the Box Taco has 17.9g net carbs per 100g — 20.5g total carbs minus 2.6g fiber — plus 7.7g protein, 11.5g fat, and 218 calories. 1 taco (78g) works out to about 14g net carbs and 170 calories. That makes jack in the box taco moderate in net carbs and lower than the typical fast-food item, which averages about 26.7g net carbs per 100g. At this carb count, jack in the box taco is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Keeping an eye on carbs in jack in the box taco?
Jack in the Box Taco 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 jack in the box taco keto-friendly?
Jack in the Box Taco is borderline for keto — it works only in small portions. It has 17.9g net carbs per 100g (20.5g total carbs − 2.6g fiber). A typical serving — 1 taco (78g) — is about 14g 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 taco (78g) | 14g | 16g | 6g | 170 |
| 100 g (3.5 oz) | 17.9g | 20.5g | 7.7g | 218 |
| 1 oz (28 g) | 5g | 5.7g | 2.2g | 61 |
How many calories are in jack in the box taco?
Jack in the Box Taco has 218 calories per 100g. 1 taco (78g) has about 170 calories. That's alongside 7.7g protein, 11.5g fat, and 17.9g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 218 |
| Total carbs | 20.5g |
| Net carbs | 17.9g |
| Fiber | 2.6g |
| Sugar | 1.3g |
| Sugar alcohols | 0g |
| Protein | 7.7g |
| Fat | 11.5g |
| Sodium | 397mg |
| Potassium | 122mg |
Source: Manufacturer-reported values (fast-food). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in jack in the box taco?
- Jack in the Box Taco has 20.5g of total carbs and 17.9g of net carbs per 100 grams.
- How many net carbs are in jack in the box taco?
- Jack in the Box Taco has 17.9g of net carbs per 100 grams (total carbs 20.5g minus 2.6g fiber).
- Is jack in the box taco keto-friendly?
- Jack in the Box Taco is borderline for keto — it works only in small portions. It has 17.9g net carbs per 100g (20.5g total carbs − 2.6g fiber). A typical serving — 1 taco (78g) — is about 14g 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 jack in the box taco?
- Jack in the Box Taco has 218 calories per 100 grams.
- How many carbs are in 1 taco (78g)?
- 1 taco (78g) (78g) has about 14g net carbs, 16g total carbs, and 170 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.