Wendy's Brownie Batter Vanilla Frosty Swirls contain between 500-701 calories, depending on your choice of size. The size with the fewest calories is the Small Brownie Batter Vanilla Frosty Swirl (500 calories), while the Large Brownie Batter Vanilla Frosty Swirl contains the most calories (701 calories).
Choose from the sizes below to see the full nutrition facts, ingredients and allergen information.
