Though fast food restaurants aren't exactly the meccas of nutrition, each restaurant is bound to have at least one option that saves calories. Two of Taco Bell's Fresco Soft Tacos with shredded chicken only set you back 280 calories, Wendy's Ultimate Chicken Grill sandwich is 370 calories - Arby's even offers a 250-calorie Chopped Farmhouse Salad.

If you're not careful, however, there is a chance that you could find yourself eating a full day's serving (or more) of calories in a single meal. Using nutrition data from ESHA, HealthGrove found the most caloric burger at 20 popular chain restaurants.

HealthGrove ranked the list by number of calories for a serving size of one burger, and broke ties by selecting the burger with more grams of fat.

Next time you're craving fast food, avoid these burgers so you can satisfy your need for beef without adding significantly to your waistline.

#20. In-N-Out Burger

Double Double Cheeseburger

Calories: 670
Serving size: 330g
Nutrient Score: D

#19. McDonald's

Double Quarter Pounder Cheeseburger

Calories: 740
Serving size: 277g
Nutrient Score: D

#18. A&W Restaurant

Original Bacon Double Cheeseburger

Calories: 760
Serving size: 297g
Nutrient Score: D

#17. Del Taco

Bacon Double Del Cheeseburger

Calories: 770
Serving size: 276g
Nutrient Score: D

#16. Rally's / Checkers

Double Champ Cheeseburger

Calories: 790
Serving size: 300g
Nutrient Score: F

#15. Jack in the Box

Bacon Ultimate Cheeseburger

Calories: 910
Serving size: 284g
Nutrient Score: F

#14. Five Guys

Bacon Cheeseburger

Calories: 920
Serving size: 317g
Nutrient Score: F

#13. Dairy Queen

Double Flame Thrower GrillBurger Cheeseburger

Calories: 1010
Serving size: 321g
Nutrient Score: D

#12. Wendy's

Dave's Hot 'n Juicy 3/4-lb. Triple Cheeseburger

Calories: 1070
Serving size: 423g
Nutrient Score: D

#11. Bob Evans

Big Farm Three Cheese Cheeseburger

Calories: 1090
Serving size: 408g
Nutrient Score: F

#10. Whataburger

Chop House Cheddar Cheeseburger

Calories: 1100
Serving size: 371g
Nutrient Score: D

#9. Denny's

Double Cheeseburger

Calories: 1120
Serving size: 539g
Nutrient Score: F

#8. Burger King

Triple Whopper

Calories: 1160
Serving size: 455g
Nutrient Score: F

#7. Sizzler

Double Mega Bacon Cheeseburger

Calories: 1175
Serving size: 226g
Nutrient Score: F

#6. Sonic

SuperSonic Bacon Double Cheeseburger

Calories: 1240
Serving size: 396g
Nutrient Score: D-

#5. Mimi's Cafe

Hickory Bacon Cheddar Burger

Calories: 1250
Serving size: 482g
Nutrient Score: F

#4. Carl's Junior

1/2-lb. Thickburger El Diablo

Calories: 1290
Serving size: 431g
Nutrient Score: D

#3. Hardee's

2/3-lb. Monster Thickburger

Calories: 1340
Serving size: 399g
Nutrient Score: F

#2. Red Robin

Whiskey River BBQ Cheeseburger

Calories: 1392
Serving size: 340g
Nutrient Score: D-

#1. Johnny Rockets

Bacon & Cheddar Double Cheeseburger

Calories: 1770
Serving size: 555g
Nutrient Score: F

Research More Nutritional Information on HealthGrove