How Many Calories In A Small Wendy'S Frosty. Wendy's, frosty dairy dessert contains 149 calories per 113 g serving. Are there any artificial flavors in a wendy’s frosty?

So, how many calories are in a small wendy’s frosty? There are 340 calories in 1 shake (12 oz) of wendy’s vanilla frosty (small).