A cup of coffee with milk usually has less than 20 total calories. Semi-skimmed milk is a kind of milk typically found in the United Kingdom. It has a fat content of 1.7 percent. Similar varieties of low-fat milk in the United States have either 1 or 2 percent fat content levels. Depending on which one you use in your morning brew will affect the total calories in your hot beverage, albeit only slightly.
Coffee and Milk Calories
A 6- to 8-ounce mug of plain black coffee has just 2 calories. Adding in 1 ounce of semi-skimmed milk gives you another 15 calories. Using 1 ounce of 2 percent milk instead also provides about 15 calories added calories. You'll shave off some calories by opting for 1 percent milk, as 1 ounce of this milk has just 13 calories.