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How do I figure out my kitten's age using their teeth or weight?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | unneutered | 1 month and 27 days old | 8.3 lbs

How old does this kitten look?

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2 Answers

Most Helpful Answer

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Answered By Jeffrey Milner

Veterinarian

Published on April 28th, 2017

The best way to determine a kitten's age is by their teeth or their weight. In a cat this young, I like to use weight to approximate age. Usually in the first three to four months of their life, you can estimate a healthy cat should weigh one pound per month of life. Kittens will begin getting some their adult teeth as early as 11 or 12 weeks of life, and usually have all of their adult teeth by five to seven months of age.

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on

    Oh my goodness, Toby is so cute! He looks young, probably between one to two months of age. You can check his teeth to see how old he is; check out this website that details how to age him by his teeth with pictures :-) http://aspcapro.org/blog/2014/07/03/tip-week-4-ways-tell-kittens-age

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