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Puppy Predictor

Shih Tzu Size Calculator

How big will my Shih Tzu get? Predict adult weight and track your puppy's development.

Breed Overview

About the Shih Tzu

Affectionate, playful, and outgoing

Group

Toy

Size Category

Small

Lifespan

10-18 years

Full Maturity

12 months

Temperament Traits

AffectionatePlayfulOutgoingIntelligentLivelyHappy

Growth & Height Benchmarks

Expected Adult Weight

9-16lbs

Typical Male

9-16 lbs

9-10.5" tall

Typical Female

9-16 lbs

9-10.5" tall

How the Shih Tzu Calculator Works

1

High-Sensitivity Dynamic Modeling

We use a proprietary High-Sensitivity Dynamic Model calibrated specifically for Shih Tzu development. This accounts for the biological reality that growth velocity decelerates sharply as a puppy matures, ensuring pinpoint accuracy for both 8-week-old puppies and older teenagers.

2

Maturity Window Calibration

A Shih Tzu typically reaches its full skeletal structure around 12 months. Our algorithm applies a specific maturity multiplier that adjusts the projection as your puppy approaches this target window.

3

Standard Deviation Check

Every projection is cross-referenced against the Shih Tzu breed standard (9–16 lbs). While estimates can begin at 6 weeks, data collected after the 12-week mark provides the highest statistical confidence.

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