10 biggest burger chains of 2018

10. Five Guys Burgers and Fries

$1.4 billion in U.S. systemwide sales in the Latest Year

9. Carl's Jr.

$1.5 billion in U.S. systemwide sales in the Latest Year

8. Hardee's

$2.2 billion in U.S. systemwide sales in the Latest Year

7. Whataburger

$2.3 billion in U.S. systemwide sales in the Latest Year

6. Jack in the Box

$3.5 billion in U.S. systemwide sales in the Latest Year

5. Dairy Queen

$3.6 billion in U.S. systemwide sales in the Latest Year

4. Sonic Drive-In

$4.4 billion in U.S. systemwide sales in the Latest Year

3. Wendy's

$9.3 billion in U.S. systemwide sales in the Latest Year

2. Burger King

$9.6 billion in U.S. systemwide sales in the Latest Year

1. McDonald's

$37.6 billion in U.S. systemwide sales in the Latest Year