Carbs in Subway Meatball Marinara 6-Inch Sub
How many carbs are in subway meatball marinara 6-inch sub?
Subway Meatball Marinara 6-Inch Sub has 21.4g net carbs per 100g — 23.4g total carbs minus 2g fiber — plus 9.8g protein, 8.8g fat, and 200 calories. 1 6-inch sub on Italian bread (205g) works out to about 43.9g net carbs and 410 calories. That makes subway meatball marinara 6-inch sub high in net carbs and about average for the typical fast-food item, which averages about 26.5g net carbs per 100g. At this carb count, subway meatball marinara 6-inch sub 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.
Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

Values per 100 g.
Is subway meatball marinara 6-inch sub keto-friendly?
Subway Meatball Marinara 6-Inch Sub is generally not keto-friendly. It has 21.4g net carbs per 100g (23.4g total carbs − 2g fiber). A typical serving — 1 6-inch sub on Italian bread (205g) — is about 43.9g 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 6-inch sub on Italian bread (205g) | 43.9g | 48g | 20.1g | 410 |
| 100 g (3.5 oz) | 21.4g | 23.4g | 9.8g | 200 |
| 1 oz (28 g) | 6g | 6.6g | 2.7g | 56 |
How many calories are in subway meatball marinara 6-inch sub?
Subway Meatball Marinara 6-Inch Sub has 200 calories per 100g. 1 6-inch sub on Italian bread (205g) has about 410 calories. That's alongside 9.8g protein, 8.8g fat, and 21.4g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 200 |
| Total carbs | 23.4g |
| Net carbs | 21.4g |
| Fiber | 2g |
| Sugar | 3.4g |
| Sugar alcohols | 0g |
| Protein | 9.8g |
| Fat | 8.8g |
| Sodium | 527mg |
| Potassium | 0mg |
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 subway meatball marinara 6-inch sub?
- Subway Meatball Marinara 6-Inch Sub has 23.4g of total carbs and 21.4g of net carbs per 100 grams.
- How many net carbs are in subway meatball marinara 6-inch sub?
- Subway Meatball Marinara 6-Inch Sub has 21.4g of net carbs per 100 grams (total carbs 23.4g minus 2g fiber).
- Is subway meatball marinara 6-inch sub keto-friendly?
- Subway Meatball Marinara 6-Inch Sub is generally not keto-friendly. It has 21.4g net carbs per 100g (23.4g total carbs − 2g fiber). A typical serving — 1 6-inch sub on Italian bread (205g) — is about 43.9g 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 subway meatball marinara 6-inch sub?
- Subway Meatball Marinara 6-Inch Sub has 200 calories per 100 grams.
- How many carbs are in 1 6-inch sub on italian bread (205g)?
- 1 6-inch sub on Italian bread (205g) (205g) has about 43.9g net carbs, 48g total carbs, and 410 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.