Maine Coon Kitten Weight Chart: Growth by Week
Track your Maine Coon kitten's growth against global breed standards.
Save the growth curve
Want to track growth over time and receive medical alerts when weight drops?
| Age | Male avg | Female avg |
|---|---|---|
| Birth | 130 g | 130 g |
| 1 Week | 225 g | 225 g |
| 4 Weeks | 505 g | 505 g |
| 8 Weeks | 1250 g | 1250 g |
| 12 Weeks | 1950 g | 1950 g |
How fast should a Maine Coon kitten grow?
Maine Coon kittens are among the fastest-growing cat breeds. They double their birth weight in the first week and continue growing for 4–5 years. A healthy kitten should gain weight consistently every week — stagnation for more than 2 days is a warning sign.
When do Maine Coon cats stop growing?
Maine Coon cats typically grow for 48 months before reaching their full adult weight.
Red flags: When to worry
- Weight loss of more than 10% of body weight
- No weight gain for 48 hours (newborns)
- Shrinking belly or kitten appears bloated
- Kitten not nursing or not seeking the mother