Wendy's Oreo Brownie Vanilla Frosty Fusions contain between 520-850 calories, depending on your choice of size. The size with the fewest calories is the Small Oreo Brownie Vanilla Frosty Fusion (520 calories), while the Large Oreo Brownie Vanilla Frosty Fusion contains the most calories (850 calories).
Choose from the sizes below to see the full nutrition facts, ingredients and allergen information.
