How many calories are in 150 grams of milk? A Detailed Breakdown

December 9, 2025 •

4 min read

The calorie count for 150 grams of milk is not a single number but depends heavily on the fat content, with values ranging from approximately 55 kcal in skim milk to over 90 kcal in whole milk. This difference highlights why understanding milk variations is essential for anyone tracking their daily nutritional intake.

Quick Summary

The exact calories in 150g of milk vary by fat content. Whole milk contains approximately 92 kcal, while semi-skimmed has about 75 kcal, and skim milk has around 55 kcal.

Key Points

Whole Milk Calories: A 150g serving of whole milk contains approximately 92 calories due to its higher fat content.
Skim Milk Calories: Skim or fat-free milk contains the fewest calories, with 150g providing about 55-56 calories.
Semi-Skimmed Milk Calories: Offering a moderate option, 150g of semi-skimmed milk has around 75 calories.
Nutrient Retention: Lower-fat milk options (semi-skimmed and skimmed) retain most of the protein and calcium found in whole milk, despite the calorie reduction.
Primary Factor: The main reason for calorie differences between milk types is the varying fat content, as fat is more energy-dense than protein or carbohydrates.
Dietary Choice: Choosing a lower-fat milk is an effective way to reduce overall calorie intake while maintaining a good source of calcium and protein in your diet.

Understanding Milk's Calorie Differences

Milk is a common staple in many diets, valued for its rich content of calcium, protein, and vitamins. However, the calorie density of milk varies significantly based on its fat content, which is adjusted during processing. A 150-gram serving, a common measurement for cereals, coffees, or simply a small glass, offers a different energy profile depending on whether you choose whole, semi-skimmed, or skim milk.

Whole milk, for instance, contains a higher fat percentage, which directly contributes to its higher calorie count. In contrast, skim milk, which has had nearly all its fat removed, contains the lowest number of calories. Semi-skimmed milk provides a middle ground, balancing flavor and a moderate calorie intake. For those on a calorie-controlled diet, opting for a lower-fat version can make a substantial difference over time without compromising on essential nutrients like protein and calcium, which remain relatively consistent across different milk types.

Whole Milk: The Full-Fat Option

For those who prefer a richer, creamier texture, whole milk is the traditional choice. A 150-gram serving of whole milk typically contains around 92 calories. The primary reason for this higher count is its fat content, which can be around 3.25% or more. This fat not only contributes extra calories but also provides a more robust flavor profile and creamy mouthfeel, which many people prefer for drinking or in rich, creamy dishes. The macronutrient composition for this serving size includes approximately 5g of fat, 7g of carbohydrates, and 5g of protein. It is also a significant source of vitamins A and D, with some fat-soluble vitamins being lost when fat is removed from the milk.

Semi-Skimmed Milk: The Popular Compromise

Semi-skimmed milk, also known as reduced-fat milk, is the most popular choice for many, especially in regions like Northern Ireland, as it balances a creamy taste with a lower fat and calorie count. A 150-gram serving provides a moderate amount of energy, averaging around 75 calories. This is achieved by reducing the fat content to roughly 1.7%. Semi-skimmed milk still provides a substantial amount of protein, calcium, and vitamin B12, making it a nutritious option that supports bone health and overall well-being. Its macronutrient breakdown includes around 3g of fat, 7g of carbohydrates, and 5g of protein per 150g serving.

Skim Milk: The Lowest Calorie Choice

Skim milk, or fat-free milk, is the lowest-calorie dairy milk option available. A 150-gram serving contains approximately 55 to 56 calories, making it an excellent choice for those focused on strict calorie control. The fat content is virtually non-existent, typically less than 0.5%. Despite the removal of fat, skim milk retains a similar concentration of other crucial nutrients. Like its higher-fat counterparts, it remains a good source of protein, calcium, and B vitamins, though its texture is much thinner and its flavor is less rich due to the lack of fat. For those who prioritize a low-calorie diet, skim milk offers the nutritional benefits of dairy without the extra fat calories. Plant-based alternatives, such as unsweetened almond milk, offer even fewer calories, though with different nutritional profiles.

Factors Influencing Milk's Calorie Content

While the primary factor affecting the calorie count is the fat content, other elements can also play a role, albeit a smaller one. For example, some milk products are fortified with extra vitamins or minerals, which typically have a negligible impact on overall calories. The lactose (natural sugar) content of milk also contributes to the calorie count via carbohydrates. While fat content has the most significant influence, these other nutritional elements should also be considered when assessing the overall profile of the milk you are consuming. For a comprehensive overview of milk's nutritional benefits, you can consult reliable sources like the U.S. Dairy website.

Calorie Comparison: 150g Milk Varieties


Type of Milk	Approximate Calories per 150g	Primary Calorie Source	Fat Content	Protein Content
Whole Milk	92 kcal	Fat (approx. 48%)	5g	5g
Semi-Skimmed Milk	75 kcal	Carbs & Protein	3g	5g
Skim Milk	56 kcal	Carbs & Protein	0.4g	5g

Conclusion

In summary, the calorie content for 150 grams of milk varies significantly based on its fat level. Whole milk is the most calorific option at around 92 kcal, while skim milk offers the lowest calorie count at approximately 55-56 kcal. Semi-skimmed milk sits in the middle with about 75 kcal. By understanding these differences, individuals can make informed choices to align their milk consumption with their specific dietary goals, whether that's reducing overall calorie intake or enjoying a richer-tasting, higher-fat beverage. All three options still provide essential nutrients like protein and calcium, but differ primarily in their energy density and fat content.

U.S. Dairy: Whole Milk Nutrition, Calories & Protein Guide

Frequently Asked Questions

Yes, 150g of skim milk and whole milk contain a very similar amount of protein (around 5g), as the processing primarily removes fat, not protein.

Skim milk is generally considered the best option for weight loss due to its significantly lower calorie and fat content, as long as it's part of a calorie-controlled diet.

A 150g serving of whole milk contains approximately 5 grams of fat, contributing significantly to its calorie count.

Yes, while the general range is consistent, slight variations can occur between brands due to different processing methods or fat standardization percentages. Always check the nutrition label for the most accurate information.

While there is no single 'standard' serving size, 150g (or roughly 150ml) is a common amount for many uses, such as adding to a beverage or a bowl of cereal.

The primary change when fat is removed is a reduction in fat-soluble vitamins (like vitamin A and D) and a slight concentration increase in water-soluble vitamins and minerals. Fortification is often used to add back vitamins A and D.

Many plant-based alternatives, particularly unsweetened almond milk, are significantly lower in calories than dairy milk. However, their protein and calcium levels can vary, so it's important to read the labels.