There are 640 calories in a Sonic Burger W/ Mustard from Sonic. Most of those calories come from fat (53%).
|Amount Per Serving|
|Calories From Fat||330|
*All percent daily value figures are based on a 2,000 calorie diet.
Weight Watchers Freestyle Points: 21
Weight Watchers SmartPoints: 21
Weight Watchers PointsPlus: 17
We are working on getting the allergen information for this item.
We are working on getting the ingredients for this item.