Rex Rabbit Weight Chart

How big do Rex Rabbits get? See their growth chart and ideal weight.

Quick Answer

The Rex Rabbit is a medium to large-sized rabbit that typically weighs 7.5-10.5 lbs. They reach full adult size by approximately 18-24 months. See the complete growth chart and weight milestones below.

Adult Weight Range
7.5-10.5 lbs
Size: Medium to Large

Rex Rabbit Growth Chart

8 weeks
1.5 lbs
12%
3 months
3.8 lbs
30%
6 months
7.5 lbs
60%
9 months
10.0 lbs
80%
12 months
11.3 lbs
90%
18-24 months
12.5 lbs
100%

Is My Rex Rabbit a Healthy Weight?

A healthy Rex Rabbit should have a visible waist when viewed from above, and you should be able to feel (but not see) their ribs. Proper nutrition and regular health checkups are essential for maintaining your Rex Rabbit's ideal weight.

  • 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 Rex Rabbit get?

A healthy adult Rex Rabbit typically weighs between 7.5-10.5 lbs. They are considered a Medium to Large breed.

When does a Rex Rabbit stop growing?

Most Rex Rabbits reach their full adult height and weight by 18-24 months. However, they may continue to "fill out" with muscle for a few months after.

How much should a Rex Rabbit puppy weigh at 3 months?

At 3 months old, a typical Rex Rabbit puppy weighs approximately 3.8 lbs. Growth rates vary, so consult your vet if concerned.

How can I tell if my Rex Rabbit is overweight?

A healthy Rex Rabbit 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 Rex Rabbit may be overweight. Consult your vet for an accurate body condition assessment.

Official Breed Standards

For official Rex Rabbit size and weight standards, refer to the AKC Breed Standards. Breed standards define the ideal size range, but individual rabbits may vary based on genetics, diet, and overall health.

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Rex Rabbit Weight Chart 2026 | Size, Growth & Ideal Weight | Clawmate