We Value Your Privacy

We and our partners use technology such as cookies on our site to personalise content and ads, provide social media features, and analyse our traffic. Click below to consent to the use of this technology across the web. You can change your mind and change your consent choices at anytime by returning to this site.

Update Consent
Loading ...

What is the normal birth weight of a newborn kitten?

Updated November 21, 2016

Female cats typically give birth after 63 to 67 days of gestation, but some may go as long as 70 days. It is important to weigh kittens when they are born and at least every other day until they are 2 weeks old to ensure that they are healthy.

Loading ...


The average kitten weighs about 99 grams at birth. Most will weigh between 91 and 105 grams.

Litter size

It isn't uncommon for kittens in small litters to weigh more or in very large litters to weigh less. Very tiny kittens may not survive. Less than 88 grams is considered low birth weight.


Kitten weight may depend on the breed. Maine coons, one of the largest house cat breeds, often weigh 125 to 136 grams.

Weight gain

It's important for kittens to maintain a steady increase in weight, veterinarian Mary D. McCauley says on the website of the Maine Coon Breeders and Fanciers Association. Stopping weight gain or loss of weight indicates a problem. 7 to 14 grams per day is normal.


Buy a scale that weighs in grams to accurately measure your kitten's weight.

Loading ...

About the Author

Daniel Cobalt

Daniel Cobalt lives in Georgia and has been writing online for over five years. He has a technical certificate in printing from the Philadelphia Printing School. His areas of expertise include fitness, home schooling, parenting, personal relationships, small business ownership and pet topics including breeding, training and responsible ownership.

Loading ...
Loading ...