How many calories are in 1 hamburger at McDonalds?

254 calories, with 8g of fat !
One regular hamburger has 260 calories in it.
250 calories.
A McDonald's hamburger contains 250 calories.
Too many to be healthy. In the Angus burger, there are already 610 calories, without cheddar cheese!
There are 250 calories in a hamburger from McDonald's.
Hamburger: 269.4

Big Mac, no cheese: 495

Big Mac, with cheese: 571.1

Cheeseburger: 325.7

Quarter Pounder, no cheese: 437.2

Quarter Pounder, with cheese: 535.9.
There are at present 23 different 'burgers' at McDonalds!

They are all listed with calories on their website:

http://www.mcdonalds.com/us/en/food/full_menu/sandwiches.html

Premium Crispy Chicken Ranch BLT Sandwich has the most at 590

plain Hamburger the least at 250 (See it hidden in their menu)

a cheeseburger is 300 calories
reg burger 250 big mac 540
A McDonald's hamburger contains 250 calories.
250 calories in a McDonald's hamburger.
each is differant, a chesseburger has 300, a big mac and big extra has 500 a fillet o fish is worse!!!! If you are counting calories and eating at mc donalds try a snack wrap or a salad

According to mcdonalds.com, a regular hamburger has the following nutritional value:

430 calories
23 grams fat
35g carbohydrates
22 grams protein
1030 milligrams sodium

According to McDonald's nutritional chart, a plain hamburger has 240 calories. With cheese added, they have 290 calories.