Pets
Shih Tzu Puppy Weight Calculator — Estimate Adult Size.
Estimate your Shih Tzu puppy's adult weight. Enter current age and weight to see a growth curve, expected adult size, and breed-specific weight ranges for male and female Shih Tzus.
Puppy Info
lbs
in
Floor to withers
in
Chest to tail base
Shih Tzu · Breed Standard (Male)
Weight
9–16 lbs
Height
9–10.5 in
Length
10–12 in
Estimated Adult Size
Shih Tzu · Male · 12 weeks old
Adult Weight
19lbs
Range: 34 – 18 lbs
Shoulder Height
9.4in
8.0 – 11 in
Body Length
11in
9.1 – 12 in
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A Shih Tzu puppy weighing 10.0 lbs at 12 weeks is estimated to reach 19.2 lbs as an adult.
Growth Curve
Projected weight at each developmental milestone (4–52 weeks)
How It's Calculated
Adult Weight = (Current Weight / Growth%) × Gender Factor = (10.0 / 25.0%) × 1.000
Gender factor: 1.0 (male) / 0.875 (female). Growth % based on Toy breed curve.
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