How much milk do cows give?

How much milk do cows give?


Cows produce the majority of milk in the world

“The cow is the foster mother of the human race. From the time of the ancient Hindoo to this time have the thoughts of men turned to this kindly and beneficent creature as one of the chief sustaining forces of the human race”W.D. Hoard

Throughout history, cows have produced milk for human sustenance, (even before agriculture was developed). Today cows produce the majority of milk consumed by people. The reason why cows are the number 1 milk source in the world is because they excel at producing milk. They are masters at converting feed sources (not fit for humans), and turning it into a highly nutritious product that we call milk.

If you’ve ever wondered how much milk cows produce, you came to the right place.

The Average Cow

The United States is one of the leading dairy producing countries in the world, and American cows are among the most productive cows in world. The average cow in the U.S. produces about 21,000 lbs. of milk per year, that’s nearly 2,500 gallons a year!

On a daily basis, most cows average about 70 lbs. of milk per day, or about 8 gallons per day. 8 gallons is about 128 glasses of milk per day.

Interestingly, a herd of 800 cows can produce a large tanker truckload of milk each day. Over a year, that would be about 20 million lbs. of milk or 2.3 million gallons of milk.


How much milk do cows give

**Productivity of the average cow in select countries. Amount of pounds of milk produced in one year**

Milk production records

Cows are getting better at producing milk every year. Records are being broken all the time about how much milk cows can give. It’s really quite amazing how much cows have improved over the years.

By the time you read this, there may be a new record. But in order to illustrate how much milk the top cows can give, this is an interesting story.

According to a news report, a cow in Wisconsin produced 72,000 lbs. of milk in a year, or about 8,000 gallons of milk in a year. To produce that much milk, it means that the cow had to produce about 23 gallons of milk each day. (source)

The average cow produces 70 lbs. of milk

**The average cow produces 70 lbs. of milk per day, or about 8 gallons. Compare that to a top record holding cow that produces 23 gallons per day**

Variables affecting milk production

The amount of milk produced by dairy cows can be affected by a wide variety of variables. The key to dairy farming successfully is to minimize the impact of these variables. The following are some things that impact milk production:

  • Feeding – What the cow eats is the largest factor affecting production. If she isn’t eating enough energy or protein her milk production will decline. Changing feed sources will also affect the cow’s milk production. Any change in her daily meal will affect milk production until the cows re-adjusts to the new feed.
  • Genetic Potential – The genetics of the cow plays a role in how much milk she can produce. If the cow is the daughter of a high producing cow, she will be more likely to produce a lot of milk due to her genetic predisposition towards milk production.
  • Weather – Sudden weather changes can stress the cows causing a decrease in milk production. Hot weather will also stress the cows out mostly because the cows will eat less. Eating less feed causes the cows to drop in milk production, so farmers emphasise keeping cows comfortable and cool during summer months
  • Stage of Production – When the cow has her calf, she will begin to produce milk. Over time, the cow’s milk production will peak, then slowly drop off. Eventually, the cow will dry up.
  • Age of the cow – As a cow gets older, they become much better at producing milk. Most cows reach their maximum milk production after they finished growing. A cow will keep growing until she is 3-4 years old.

Tracking Milk Production

On our farm, we use technology to track our cow’s milk production daily. The milking machine will record each cow’s milk output in real-time. Through the system, we can determine which cows are the top producers and which are the low producers.

**The milk machines track milk production on a daily basis for each cow**

This knowledge helps us feed the cows better. By understanding the cow’s milk output, we can group them accordingly and feed them according to their dietary needs. If a cow is producing a large amount of milk, we can feed her more energy and nutrients to support that milk production. If a cow is not producing much milk, we can feed her less energy or she will gain too much weight.

Knowing the cow’s milk production allows us to take better care of the cows.

Breeding a better cow

Through breeding, dairy farmers have been able to greatly improve the amount of milk that cows give. A cow today is 10 times more productive than a cow in the past.

fewer cows more milk

**9 million cows today produce more milk than 25 million cows in 1944**

In 1944, there were 25.6 million cows in the United States, while today there are only 9.3 million cows in the U.S. that produce 59% more milk than in 1944. Cows have increased in production so significantly, that it has allowed there to be a reduction of animals to support the milk needs of the U.S.

Cows have also gotten better at converting feed to milk. The modern dairy cow needs less feed to produce milk.

more milk with less feed

**Cows today produce more milk with less feed**

This obviously has allowed the dairy industry to reduce its environmental footprint. According to Dairy Cares, the dairy industry has reduced its carbon footprint by 63% in 65 years.

While dairy cows have gotten very good at producing milk, dairies are also breeding their cows to last longer. Dairy farmers want cows that not only produce a lot of milk but a cow that will last a long time. It’s interesting, but when you breed for a balanced cow – with a strong frame and good feet and legs – milk production tends to follow. Dairy farmers realize this, that’s why one of the most important criteria for selecting bulls is longevity.

Do you have more questions?

Did I answer your question about milk production. Let me know in the comments below


  1. I am a raw milk drinker and have been since I was a little kid. I like to drink raw milk and know to milk production equipment. You shared very useful information about milk production that great info to all Thanks to share such nice information with us.

    • Is drinking milk really healthy for you? Raw cow milk is not good for human consumption. One of the dangers of drinking raw milk is getting infected with brucellosis.

  2. I’m trying to find out what to feed a Jersey cow if there is not cow feed available. I have no grass and I feed hay year round. I have horses and feed high quality purina brand feed but I don’t know what to give my cow.

    • You can feed cows hay as hay is a kind of grass. You can also supplement some oat hay and grains also. If she doesn’t get the right amount of energy, her milk will dry up

    • Usually calves are fed milk for 2-3 months after they’re born, then their digestive system changes and they can start eating grass and other forages

  3. a cow producing 20 liters of milk a day. its is in 1st calving stage and only in two months now, eventually it will give more milk. How to will I put it to dry cow after 10 months?

  4. will a cow keep producing milk after having a calf, as long as she is milked, or does she have to have more calves to keep producing milk

    • A cow will go up in production after calving and peak at about 30-60 days. She will decline in production from that point and eventually dry up. Each cow is different in the amount of time they can keep milking. Some can milk 2-3 years after calving, and others only about a year. Cows not bred for milk production, like beef cows, may only produce milk for 2-3 months after calving.

  5. How much milk is produced in life of a cow? How many calves born from same cow? Can sex of calf be controlled?

  6. Great info for conversation at the dinner table with the children and adults. Fascinating stats. Thanks!

    We go through a gallon or two a day (family of 5) and noticed that when we taper off on drinking milk, we tend to gain weight (wife and I at least). Something about milk seems to satisfy “the hungries” and we tend to eat less after a big glass of milk. We don’t have any weight problems in the family at all and suspect it has a lot to do with milk.

    • Aw so interesting that you mention that – you’re very perceptive. I’ve done some research and writing on milk fat and have found that the milk fat actually promotes a healthy metabolism. So you’re spot on!

    • Jerseys are more resilient to heat stress. Some say that they have a better feed conversion rate than some of the other breeds due to their small size

        • You will need another cow so you can have some milk while the other one is dry. They need their vacation days

  7. When you say a cow will keep growing until she is 3-4 years old, does it mean she can die any time from then or does it mean that she has reached optimum maturity age and she can’t mature any further?
    Sorry if my question sounds kinda naive.

  8. sir,thanks for your reply.i wanted to know a cow yielding 10 litres milk at calving what will be over all milk yield in lactation does it goes beyond 300 days & is it profitable to feed dry cow and buy another cow to manage milk production or replace the cow every year.

  9. sir,all this points are applicable to buffalo also as i came to know that 10 litre yielding buffalo will increase after 3 weeks at 12 litres & after 1 month will come down to 10 & will maintain up to 6th month & then it compulsory to feed concentrate or only fodder & hay is sufficient.if i wan to do 50 litres business should i buy cows yielding more than 50 litres as some of will consumed by calf and will decline in future

  10. Writing a research paper and need to know what a cow will produce with zero supplements or feed (strictly a grazing diet) vs. a modern day dairy cow with supplements… rough averages

    • It depends highly on the type of grass in your pasture. Most herds that relying only on pasture grazing produce about 40 lbs of milk per day. The reason being that there is often not enough energy or protein on a typical grass pasture. You have to supplement with additional nutrients from other sources (like alfalfa hay which is high protein) to get the additional production. typically 70-80 lbs of milk per day from cows with balanced diets

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