Tarantula Weight Chart
How big do Tarantulas get? See their growth chart and ideal weight.
Quick Answer
The Tarantula is a medium to large-sized invertebrate that typically weighs 1-3 oz. They reach full adult size by approximately 18-24 months. See the complete growth chart and weight milestones below.
Tarantula Growth Chart
Is My Tarantula a Healthy Weight?
A healthy Tarantula 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 Tarantula'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 Tarantula get?
A healthy adult Tarantula typically weighs between 1-3 oz. They are considered a Medium to Large breed.
When does a Tarantula stop growing?
Most Tarantulas 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 Tarantula puppy weigh at 3 months?
At 3 months old, a typical Tarantula puppy weighs approximately 11.3 lbs. Growth rates vary, so consult your vet if concerned.
How can I tell if my Tarantula is overweight?
A healthy Tarantula 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 Tarantula may be overweight. Consult your vet for an accurate body condition assessment.
Official Breed Standards
For official Tarantula size and weight standards, refer to the AKC Breed Standards. Breed standards define the ideal size range, but individual invertebrates may vary based on genetics, diet, and overall health.