When do Devon Rex cats reach full size?

Most Devon Rex cats reach full adult size by 12 months, with some males continuing to add muscle mass until around 15 months. The adult weight range of 2.7–4.5 kg is generally established by 12 months.

How much should a Devon Rex kitten weigh at 8 weeks?

A healthy Devon Rex kitten at 8 weeks typically weighs between 700 g and 1 kg. The breed is naturally smaller than many; consistent weekly weight gain matters more than hitting a specific absolute number.

My Devon Rex kitten looks very thin and angular. Is that normal?

The Devon Rex has a naturally fine-boned, slender build that is visible even in kittenhood. However, check for consistent weekly weight gain and verify ribs are palpable but not sharply prominent. If in doubt, a vet visit provides an objective assessment.

Is Devon Rex growth different from other cats?

The timeline is similar to other domestic cats — adult size by 12 months — but the Devon Rex's naturally high activity level and lean body composition mean growth assessment focuses more on muscle development and lean mass than total weight alone.

Devon Rex Growth Chart: What to Expect | PetCalculator

Devon Rex cats follow the standard feline growth trajectory, reaching adult size by approximately 12 months. Learn what healthy weight milestones look like for this slender, active breed and what to watch during kittenhood.