The amount of calories in a salad with Ranch Dressing depends on the amount of Ranch Dressing you put on the salad.
But the ranch dressing alone adds about 129 calories to the large salad if you put about 2 tablespoons of the ranch dressing on your salad.
The less salad dressing you use on the salad the less calories it contains.
If you only put a few squirts of ranch salad dressing on the salad then the salad along with the salad dressing may contain only 100 calories or less.
However the more salad dressing of Ranch Salad dressing you add the more calories and you could have a salad that has 300 calories depending on the size of the salad.