There are 980 calories in a Medium Butterfinger Sonic Blast from Sonic. Most of those calories come from fat (45%) and carbohydrates (48%).
To burn the 980 calories in a Medium Butterfinger Sonic Blast, you would have to run for 86 minutes or walk for 140 minutes.
TIP: You could reduce your calorie intake by 240 calories by choosing the Small Butterfinger Sonic Blast (740 calories) instead.
According to our website visitors, a Medium Butterfinger Sonic Blast is not a healthy and nutritious option from Sonic, with only 13% of voters finding it to be healthy.
Let us know what you think! Review the nutrition facts above and then vote on whether you think a Medium Butterfinger Sonic Blast is healthy or not.
Allergy Information: a Sonic Butterfinger Sonic Blast contains milk, peanuts and soy. a Sonic Butterfinger Sonic Blast does not contain egg, fish, gluten, MSG, shellfish, tree nuts or wheat.*
* Please keep in mind that most fast food restaurants cannot guarantee that any product is free of allergens as they use shared equipment for prepping foods.
There are 45 Weight Watchers Freestyle Points, 45 WW SmartPoints and 27 WW PointsPlus in a serving of Medium Butterfinger Sonic Blast from Sonic.
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