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Maine Coon Weight Chart

How big do Maine Coons get? See their growth chart and ideal weight.

Adult Weight Range
55-70 lbs
Size: Large

Maine Coon Growth Chart

8 weeks
9.4 lbs
15%
3 months
15.6 lbs
25%
6 months
31.3 lbs
50%
9 months
46.9 lbs
75%
12 months
56.3 lbs
90%
18 months
62.5 lbs
100%

Is My Maine Coon a Healthy Weight?

A healthy Maine Coon should have a visible waist when viewed from above, and you should be able to feel (but not see) their ribs.

  • Ideal: Ribs easily felt, visible waist, tucked abdomen
  • !Overweight: Ribs hard to feel, no waist visible, rounded belly
  • Underweight: Ribs, spine visible, prominent waist

Frequently Asked Questions

How big does a Maine Coon get?

A healthy adult Maine Coon typically weighs between 55-70 lbs. They are considered a Large breed.

When does a Maine Coon stop growing?

Most Maine Coons reach their full adult height and weight by 18 months. However, they may continue to "fill out" with muscle for a few months after.

How much should a Maine Coon puppy weigh at 3 months?

At 3 months old, a typical Maine Coon puppy weighs approximately 15.6 lbs. Growth rates vary, so consult your vet if concerned.

How can I tell if my Maine Coon is overweight?

A healthy Maine Coon should have a visible waist when viewed from above, and you should be able to feel (but not see) their ribs through a thin layer of fat. If the waist isn't visible, ribs are hard to feel, or the belly sags, your Maine Coon may be overweight. Consult your vet for an accurate body condition assessment.