Arby's Red Onion (2 slices) Price, Calories & Nutrition
The Arby's Red Onion (2 slices) is part of the sauces & toppings menu. In the size shown it has 0 calories, 0g of fat, 0g of carbohydrate and 0g of protein, with 0mg of sodium. No major allergens are listed for it.
Prices vary by location and exclude tax. Delivery apps usually charge more.
Price by size
| Size | Price | Calories | Protein |
|---|---|---|---|
| Regular | Varies by location | 0 | 0g |
Allergens
Fried items share fryer oil, so cross-contact is possible even where an allergen is not listed. If you have a severe allergy, speak to the restaurant before ordering and check the full allergen guide.
Nutrition facts
Red Onion (2 slices) · serving size 4g
- Total fat
- 0g
- Saturated fat
- 0g
- Total carbohydrate
- 0g
- Total sugars
- 0g
- Protein
- 0g
- Sodium
- 0mg
Values from the official Arby's US Nutrition & Allergen guide (August 2026). Preparation at individual restaurants can vary.
Arby's Red Onion (2 slices) FAQs
Prices are set by each franchise owner, so the exact figure depends on your restaurant — our price list shows typical checked figures. Delivery apps usually charge more than the in-store menu board. Check the Arby's app for the price at the restaurant nearest you.
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Nutrition source: Arby's US Nutrition & Allergen guide, effective August 2026. Prices last checked September 2026. Neither is guaranteed at your restaurant — confirm in the Arby's app.