Sonic Barq's Root Beer Float: nutrition and allergens
The Barq's Root Beer Float at Sonic has 290 calories, 7 g fat, 56 g carbohydrate, 5 g protein and 250 mg sodium, according to Sonic’s nutrition information.
Nutrition facts
| Calories | 290 |
|---|---|
| Total fat (g) | 7 9% |
| Saturated fat (g) | 5 25% |
| Trans fat (g) | 0 |
| Cholesterol (mg) | 35 12% |
| Sodium (mg) | 250 11% |
| Total carbohydrate (g) | 56 20% |
| Dietary fiber (g) | 0 0% |
| Total sugars (g) | 50 |
| Protein (g) | 5 10% |
Percentages are the share of the FDA Daily Value for adults and children 4 and over, worked out from Sonic’s published amounts (how % Daily Value works). A dash means Sonic does not publish that value for this item. Not published for this item: added sugars.
Using the FDA’s rule of thumb that 5% of the Daily Value or less per serving is low and 20% or more is high, one serving is high in saturated fat (25%) and carbohydrate (20%) and is low in dietary fiber. Add it up with other items in the Sonic nutrition calculator.
Allergens
According to Sonic, the Barq's Root Beer Float contains milk.
| Milk | Contains |
|---|---|
| Egg | Not listed |
| Fish | Not listed |
| Crustacean shellfish | Not listed |
| Tree nuts | Not listed |
| Peanuts | Not listed |
| Wheat | Not listed |
| Soy | Not listed |
| Sesame | Not listed |
| Gluten | Not listed |
Sonic relies on its suppliers for allergen information and shares cooking and preparation areas, so it says it cannot rule out cross-contact or promise that any item is free of an allergen, and no item is certified gluten-free, vegetarian or vegan. Blended drinks and frozen desserts share tools, fried foods share fryers, and grilled items share the grill. Buns, Texas Toast, eggs, grilled onions and grilled peppers are cooked with a bun oil that contains soy. Some breads come from local bakeries, so ingredients and allergens such as sesame can differ by restaurant. Tell your carhop about any food allergy before ordering. Items marked as fried carry a risk of cross-contact with all allergens.
Other items in Floats at Sonic
By calories, the Barq's Root Beer Float ranks 1 of 2 in Sonic’s Floats section, from lowest to highest.
| Item | Calories |
|---|---|
| Barq's Root Beer Float | 290 |
| Mug Root Beer Float | 290 |
Nutrition for both items in Floats at Sonic
Browse the Sonic menu by goal: high-protein items · low-calorie items
Sources
- 1 Sonic, Sonic Nutritional Information brochure (national) Covers nutrition and menu · Summer 2026 · Checked 8 Oct 2026
- 2 Sonic, Sonic Allergen Information guide Covers allergens · National Summer 2026 Allergen Guide · Checked 8 Oct 2026
Spotted a value that differs from the chain’s current information? Report it