McDonald's Flat White - How Many Calories?

Reviewed by Dyt. Şeyda Ertaş, Registered Dietitian Last updated: January 4, 2026

McDonald's Flat White

~100 g

Calculated from the 100 g values. ~ indicates an estimated serving weight.

McDonald's Flat White image
39kcal
Carbohydrate3.8 g %39
Protein2.1 g %22
Fat1.7 g %39

McDonald's Flat White Nutrition Values

Nutrients100 gr1 Small Piece
Calories(kcal)3939
Carbohydrate (g)3.83.8
Protein (g)2.12.1
Fat (g)1.71.7
Fiber (g)00
Cholesterol (mg)1.51.5
Sodium (mg)4242
Potassium (mg)00
Calcium (mg)00
Iron (mg)00
Vitamin A (IU)00
Vitamin C (mg)00

Values are calculated from a 100 g basis. The product, recipe and edible serving weight can change the result. See the food-specific notes below for the reference used.

Dietitian's Tips for Consuming McDonald's Flat White

  • Metabolic Effect: Thanks to its milk content, flat white balances blood sugar and provides long-lasting satiety. The caffeine content increases your energy levels and enhances focus.
  • Consumption Recommendation: It is an ideal drink to meet your energy needs in the morning or afternoon. You can create a more balanced snack by consuming it with a light snack.
  • Things to Consider: One cup of McDonald's Flat White can meet a portion of your daily calcium needs, depending on the amount of milk it contains. However, excessive consumption can lead to sleep problems in people with caffeine sensitivity.
  • Exercise Equivalent: To burn the calories in this drink, it is enough to walk at a light pace for about 8 minutes. Alternatively, you can climb stairs for 5 minutes.