They’re known for their charbroiled burgers.

They’re decked out in matching red and yellow color palettes.

And they both use the same smiling gold star, also known as Happy Star, as their logo.

Hardee’s & Carl’s Jr collage

Top: Joni Hanebutt / Shutterstock; Bottom: Ken Wolter / Shutterstock

Operating as sister brands, the two fast-food chains began as separate entities.

Despite their strikingly similar offerings and appearances, Hardee’s and Carl’s Jr. aren’t identical chains.

In fact, there are a few key differences you might not have even realized.

carl’s jr. sign

Photo: Tada Images / Shutterstock

From their locations to their burgers, here are five key distinctions between the tworegional fast-food chains.

Hardee’s servesmore than 1,800 locationsacross 32 states, primarily in the southeastern and midwestern U.S.

The chain also has an international presence in 13 countries.

Hardee’s breakfast biscuit sanwiches

Hardee’s / Facebook

This chain has a larger international presence than Hardee’s, operating in 28 countries across the globe.

The only states that have both Hardee’s and Carl’s Jr. locations are Oklahoma and Wyoming.

Under the breakfast sandwich category, Hardee’s highlights10 different biscuit sandwiches, while Carl’s Jr. hasjust three.

person holding carl’s Jr. western bacon cheeseburger

Carl’s Jr. / Facebook

That being said, the number of offerings and availability can vary depending on the location.

Hardee’s also serves French Toast Dips, a Biscuit ‘N’ Gravy plate, and breakfast platters.

Despite this overlap, each brand has some offerings that the other one doesn’t.

person taking carl’s jr. zucchini bites

Carl’s Jr. / Facebook

Another popular option is the Western Bacon Cheeseburger.

This option isn’t currently available at Hardee’s.

Both chains offer cinnamon rolls and hand-sc0oped ice cream shakes.

hardee’s tastes like america campaign

BusinessWire / YouTube

However, like any other chain, menu item availability can vary by location.