🐾 Maine Coon Growth Chart: Month-by-Month Guide

Maine Coons are often called the “gentle giants” of the cat world, and for good reason — they can grow to be twice the size of the average house cat. But how big will your Maine Coon kitten actually get, and when?

This growth chart breaks down the typical month-by-month development of Maine Coon kittens, so you’ll know what to expect as your little one grows into their majestic frame.

📊 Maine Coon Growth by Age:

Birth – 1 Month:

• Average weight: 90–170 grams at birth

• By one month: 1–1.5 lbs

• Milestones: Eyes and ears open, wobbly walking begins

2 Months:

• Average weight: 2–3 lbs

• Kittens are playful, active, and starting to show unique personality traits

3 Months:

• Average weight: 3–5 lbs

• Rapid growth, long legs and tails become noticeable

4–5 Months:

• Average weight: 5–7 lbs

• Growth spurts continue, appetite increases significantly

6 Months:

• Average weight: 7–10 lbs

• Some males begin to look “teenage lanky”

• Females tend to be a little smaller but still strong and sturdy

8–9 Months:

• Average weight: 9–12 lbs (females), 10–14 lbs (males)

• Playful but starting to mature in behavior

1 Year:

• Average weight: 10–16 lbs

• Many kittens look full-grown at this point, but they still have years of growth left

2–3 Years:

• Average weight: 12–18 lbs (females), 15–25+ lbs (males)

• Full coat and muscular frame develop

• Maine Coons don’t reach their full size until 3–5 years old!

  
  

🧬 Why Do Maine Coons Grow So Slowly?

Unlike most cats, Maine Coons have a long growth period. Their slow development is perfectly normal and helps them achieve their strong, muscular build without putting stress on their bones and joints.

🐾 Final Thoughts

Watching a Maine Coon kitten grow is an incredible journey — from fluffy baby to majestic adult, every stage is unique.