How much does a gallon of milk weigh? 

gallon of milk weigh

How much does a gallon of milk weigh – In the US, a single gallon of milk weighs about 8.6 lbs (3.9 kilograms), but in the UK or Canada, it weighs about 10.32 lbs (4.6 kilograms). However, this weight may change based on what kind of milk we use and the amount of fat included in a typical portion. 

We’ll look at the weights of one gallon of milk in kilograms, lbs, and pounds below. We’ll also talk about whether the same amount of milk weighs exactly the same everywhere, what the price of a gallon of milk costs in the United States, the United Kingdom, and Canada, and if milk or water weighs more per gallon. In this article, you will be reading about “How much does a gallon of milk weigh”. 

Does Milk Have a Consistent Weight?

Despite having the same appearance, milk can vary in weight based on its kind (whole, 2%, skim, and low-fat) and fat content. Therefore, if milk has a larger fat content, it will weigh more since fat is much lighter than water.

For instance, full milk has a higher fat content than skim milk, which results in a higher weight per cup. There are variances per serving regardless of whether you weigh the various forms of milk, which include goat, sheep, and any milk made from plants. 

The weight of milk products sold by various brands or producers may vary slightly. 

How much does a gallon of milk weigh?

In the US, how much does a gallon of milk weigh about 8.6 lbs., or 3.9 kilograms? The most typical measurement used to measure liquids in the US is this one, which equals 128 fluid ounces.

In the US, a gallon of milk’s nutritional information is often provided in grams and milligrams. 

What is the weight of a gallon of milk in Canada and UK?

Due to the use of the metric gallon, which is a little larger, how much does a gallon of milk weigh in the UK & Canada is different from that in the US.

In the UK & Canada, a gallon of milk weighs approximately 10.32 pounds (4.67 kg). However, it is crucial to remember that milk is not sold in gallons in the UK. It is instead provided in liters and pints.

INFORMATION: A pint equals 0.125 US gallons.

What Are The Various Milk Classifications?

1. Full-fat milk

Cows produce whole milk, which is 3.25 percent more on average in fat than other varieties. Whole milk has 13 vital elements and about 150 calories per 8-ounce serving. 

While it may not be the best choice for people seeking to cut their fat intake or lose weight, it is an outstanding source for calcium, protein, & vitamin D.

It’s interesting to note that while you can microwave Hershey’s chocolate to make milk with chocolate for yourself, doing so will also modify the substance’s weight and nutritional composition.

2. Low-Fat Milk

Reduced-fat milk is a better alternative because it has a lower fat content—typically about 2% or less—and only has 5g of fat while still providing 13 vital elements. This kind of milk is frequently used in cooking, baking, as well as as a beverage.

3. Reduced-Fat Milk

A typical glass of milk with no fat has 100 calories & 2.5 grams of fat, yet it only has 1% fat by weight. This makes it perfect for those concerned about their weight, heart disease, or high blood pressure.

INFORMATION: You must pay special consideration to the amount that a chicken thighs weighs if you’ve been on a rigorous diet that mandates that you measure your calorie consumption strictly.

4. Skim milk or milk with or without fat

If you want the advantages without the extra fat, skim milk is a great option because it has just 0.1% fat by weight. A typical glass of free-fat milk has 80 calories or is a good source of nutrients and vitamins like potassium, phosphorus, vitamin A, and vitamin B12.

INFORMATION: Other varieties of dairy, as well as non-dairy milk, include coconut, almond, oat, soy, and milk that has been condensed, evaporated, or frozen.

Which is heavier, a gallon of water or milk?

A gallon of milk has additional ingredients such as proteins, lipids, lactose, minerals, and vitamins, making it denser and heavier than a gallon of water. However, the value may change depending on what kind of milk you’re referring to. 

For instance, the most popular kind of milk is cow’s milk. But it is available in various forms, including whole, skim, condensed, dissipated frozen, & reduced or low fat milk. Each form has a distinct texture & density, which could affect their weight.

It’s crucial to remember that water makes up most of milk’s content, or about 87% of it, irrespective of the type. Therefore, it is doubtful that there will be much of a weight variation between different milk varieties.

How Do You Determine Milk’s Weight?

Check the volume of the container in litres and translate it to millimetres to get the weight of the milk. The weight of the milk in grams is then calculated by dividing the amount contained in millimetres by the milk’s density. The value should then be multiplied by 0.0022 to change the measurement to pounds. 

The weight of various varieties of cow’s milk in a gallon is broken down as follows:

Type of MilkFat Content Weigh in KgWeight in Pounds
Low Fat Milk1 %4.32kg8.7 lbs
2% Reduced Fat Milk 2.5 %3.81 kg8.4 lbs
Whole Milk3.25 %3.9 kg8.6 lbs
Skim Milk 0.1 % 3.85 kg8.5 lbs


“How much does  a gallon of milk weigh”  in the United States, the United Kingdom, and Canada as well as several milk categories, have been covered in this page. We have also discussed whether a gallon filled with water weighs more than milk and if all milk weighs the same.

Now that you know how to calculate calories, we believe you can comfortably grab a gallon of milk off the shelf & put it in your shopping basket. 

Frequently Asked Questions

Q1) How much does a gallon of milk weigh ?

Ans. A gallon of milk 8.6 pounds (3.9 kg) in the US. A gallon of milk weighs approximately 10.3 pounds (4.67 kg) in the UK or Canada.

Q2) Are milk gallons considered bottles?

Ans. Both wine and milk are commonly sold in 750 ml bottles and gallon jugs, respectively. The contradiction is intriguing yet unimportant. Practically speaking, milk can be purchased in jugs rather than gallons. Additionally, alcohol is sold in bottles rather than milliliters.