It is the common question that arises when someone goes to buy the milk pack. When buying a gallon of milk we usually think how much does it weigh and if it is light enough so that we can carry the gallon bottle to homes? I did some research and found this out.

So how much does a gallon of milk weigh? 1 US gallon of milk weighs at 8.6 lb or 3.9 Kg at average temperature and pressure while 1 UK gallon of milk weighs at 10.32 lb or 4.68kg. This weight may vary depending on the type of cow and fat percentage.

We can use a weight balance to measure the exact mass of milk per gallon. However, the weight of gallon varies with the system of measurement.

US UNITPoundOunceKilogram
Gallon (4 quarts)8.6 lb137.6 oz3.90 kg
Quart (2 pint)2.15 lb34.4 oz0.975 kg
Pint (2 cups)1.08 lb17.2 oz0.488 kg
Cup0.54 lb8.6 oz0.244 kg
US Gallon of Milk

According to the USDA, a gallon of milk weighs about 8.6 pounds. A quart of milk weighs about 2.15 pounds.

The Different types of Gallon

There are different types of gallons in different areas of world. The most commonly used Measurement system are US and UK measuring systems. These two types have different amounts of capacities that a gallon can carry. Both types of measuring systems, US system and UK (British imperial systems) have their own rules for the measurement.

So there exists US gallon, British imperial gallon and US dry gallon.

  • One US gallon is equivalent to 3.785 liters or 231 cubic inches.
  • One Imperial gallon is equivalent to 4.546 liters or 277.4 cubic inches.
  • One US dry gallon is equivalent to 4.405 liters or 268.8 cubic inches.

US dry gallon is a very rarely used term for measurement of different granular agricultural commodities like grains, grapes and apples.

Imperial gallon is used in commonwealth countries which include India, Pakistan, Australia, Canada, UK and numerous other countries.

As the volume of both gallons is different so obviously the weight also differs. Imperial gallon weighs significantly higher due to its greater volume capacity.

A US gallon weighs at 137.6 oz., 8.6 lbs. or 3.90 kg

An imperial gallon weighs at 10.322 lb. or 4.682 kg

So we can find weight of milk for different measuring systems.

Weight of milk in US gallon:

1 liter milk = 1.03 Kg

So,

1 US gallon = 3.7854*1.03 = 3.8989 Kg

Weight of milk in US gallon:

1 UK gallon = 1.201 US gallon

So,

1 UK gallon = 1.201*3.8989 = 4.682 Kg

Milk weight in other units

Measurement UNITPoundOunceKilogram
US Gallon8.6 lb137.6 oz3.90 kg
Imperial Gallon10.322 lb165.153 oz4.682 kg

33.53 Pounds in a gallon of milk

3898.9 Gram in a gallon of milk

Gallon of milk vs. gallon of water:

The comparison between the weights of gallons of milk and water at average temperature and pressure is of significance. As the density of milk is greater than the density of water its weight will be more than the weight of water at same conditions.

Unit system

US Gallon

UK Gallon

Pound

Kilogram

Pound

Kilogram

Gallon of milk

8.6 lb

3.90 kg

10.32 lb

4.682 kg

Gallon of water

8.35 lb

3.80 kg

10.02 lb

4.54 kg

People usually ask does a gallon of milk weigh same as water or more than water. So from the above data it can be specified that the one gallon of milk weighs more than the one gallon of water.

The average gallon of milk weighs 3.90 kg or 8.6 lb.

Looks like gallon of milk is not that heavy! (or he is not as weak as you)

How much does a milk jug weigh?

The weight of milk in a jug weighing one gallon will be as follows:

Jug filled by one gallon of milk:

As one US gallon occupies.

1 US gallon      = 3.90 kg

Hence, a one gallon jug occupies 3.90 kilograms of milk. Plus there would be some added weight to it which will be of the plastic container that the milk is in. It is normally neglected if it is simple plastic container otherwise if it is made to glass or some other bulky material then it needs to be accounted for.

Weight of milk in a 5 gallon jug

The weight of milk of 5 gallon jug will be as follows:

Calculation is pretty simple as we have already found out what 1 USS gallon jug weighs wo we can apply the same for a quantity of 5 gallon jug.

Jug filled by 5 US gallons:

As one US gallon occupies.

1 US gallon      = 3.90 kg

5 US gallon      = 5*3.90 kg

5 US gallon      = 19.50 kg

Hence, a one gallon jug occupies 19.50 kilograms of milk.

How much does a milk carton weigh?

Milk carton volume 1 gallon or 2 liters or 1 liter (now make a table for weight for each volume)

The number of milk bottles in a carton is different. Taking 2 liter bottles a carton will have 12 bottles similarly considering one liter bottle a carton will also have 12 bottles. Assuming one gallon as a unit for a carton the number of gallons in a carton will vary. Taking 6 gallons in a will weight according to the table below.

Below are the number of bottles in a carton and the weight of each carton contains are explained in a table.

VolumeContents of volumeWeight of carton
Volume 1Carton of milk with 1 liter bottle12.36 kg
Volume 2Carton of milk with 2 liter bottle24.72 kg
Volume 3Carton of milk of 1 gallon bottle23.4 kg

How much does a gallon of 2 percent milk weigh?

2 percent milk is falsely advertised and it doesn’t mean that milk with 2% fat will have all the fat removed from it but 2%. What it actually means is that the weight of fat is 2% of the weight of the milk. It is not that much lesser than the quantity of fat available in whole milk. If we talk about a gallon of milk then in a gallon of milk there is 78 grams of fats. While a gallon of whole milk will have at least 126.75 grams of fat (ranges between 126.75 to 195 grams according to FDA given range). So for a 2% gallon we consume 48.75 to 117 grams lesser fat than whole milk gallon.

How much does a gallon of 1% milk weigh?

In a gallon of milk there is 39 grams of fats. In case of whole milk fat range is the same 126.75 to 196 grams in accordance with FDA range of 3.25 to 5 percent depending on the cow. So for a 1% gallon we consume 87.75 to 157 grams lesser fat than whole milk gallon.

How much does a half gallon of milk weigh?

A US gallon weighs at 137.6 oz., 8.6 lbs. or 3.90 kg so the half gallon will weigh 68.8 oz or 1.95 kg. We just divide US gallon’s weight by two to find the half of the gallon’s weight.

An imperial gallon weighs at 10.322 lb. or 4.682 kg hence half imperial gallon will weigh 5.161 lb or 2.341 kg We just divide UK gallon’s weight by two to find the half of the gallon’s weight.

How much does a gallon of chocolate milk weigh?

This depends on the type of chocolate we are using for the mixture. Generally, a one gallon chocolate milk will have calories: 2839-3294, protein: 126.8 grams, and carbs: 409-504 grams. It weighs a little bit more than the normal milk weight per gallon.

How much does a gallon of cow’s milk weigh?

This entirely depends upon the age, weight and breed of the cows. Also it depends upon the feed that you are providing and the time you are providing. Cow’s milk may have different fat content depending on a lot of factors so weight varies a range. The fat percentage in a cow may range from 3.25% to 5%.

How much does a gallon of fat free milk weigh?

The fat free milk is available in market. The fats are essential component of milk for the weight gainers. On the other side fat free milk is also available for those who are trying to lose weight. A gallon of fat free milk weighs about 3.88 kg or 8.5 lb.

How much does a gallon of goat milk weigh?

The gallon of any milk approximately weighs about 3.90 kg. So similarly goat milk will also weigh the same with some grams of variation due to the density changes. Nutrients in goat milk are more or less the same and so is the weight. Its weight may also vary due to the fat content which differs from goat to goat.

How much does a gallon of raw milk weigh?

The gallon of any raw milk approximately weighs a little more than 3.90 kg or 8.6lb. Raw milk is then heated and treated to get the germs out of it. But in this process, some of its fats are lost and they stir up. This results in a less dense milk. But the density difference is quite minor. So we keep can still consider 8.6 lb to be the weight of raw milk.

How much does a gallon of sheep milk weigh?

The gallon of any milk approximately weighs about 3.90 kg. So similarly sheep milk will also weigh the same with some grams of variation due to the density changes. Sheep farms also play an important role in the weight and the fats milk has. The way sheep are treated and the feed they are provided also determines the weight of milk.

How much does a gallon of skim milk weigh?

The skim milk also weighs the same as the fat free milk weighs but it can contain some of fats. The fat percentage may vary from 0-2%. So for a gallon it is in range of 0 to 78 grams. This creates a really minute weight change for a gallon.

How much does a gallon of whole milk weigh?

The whole milk contains approximately 3.25% of fats and weighs the same for a gallon. Its weight is 3.9kg. The fat in this milk may vary from 126.75 grams to 195 grams.

How much does a gallon of milk cost?

The cost of milk depends upon the region it is being sold. In USA the gallon of whole milk costs roundabout 3.45$. The cost of milk with reduced fats is lesser which is 3.41$.

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