There are 580 calories in Medium Onion Rings from Sonic. Most of those calories come from fat (44%) and carbohydrates (50%).
To burn the 580 calories in Medium Onion Rings, you would have to run for 51 minutes or walk for 83 minutes.
TIP: You could reduce your calorie intake by 140 calories by choosing the Small Onion Rings (440 calories) instead.
According to our website visitors, Medium Onion Rings is not a healthy and nutritious option from Sonic, with only 27% 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 Medium Onion Rings is healthy or not.
Allergy Information: Sonic Onion Rings contain gluten, soy and wheat. Sonic Onion Rings does not contain egg, fish, milk, MSG, peanuts, shellfish or tree nuts.*
* 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 20 Weight Watchers Freestyle Points, 20 WW SmartPoints and 16 WW PointsPlus in a serving of Medium Onion Rings from Sonic.