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Puppy Predictor

Border Terrier Size Calculator

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

Breed Overview

About the Border Terrier

Affectionate, happy, and plucky

Group

Terrier

Size Category

Small

Lifespan

12-15 years

Full Maturity

12 months

Temperament Traits

FearlessAffectionateAlertIntelligentEven Tempered

Growth & Height Benchmarks

Expected Adult Weight

11.5-15.5lbs

Typical Male

11.5-15.5 lbs

13-16" tall

Typical Female

11.5-15.5 lbs

11-14" tall

How the Border Terrier Calculator Works

1

High-Sensitivity Dynamic Modeling

We use a proprietary High-Sensitivity Dynamic Model calibrated specifically for Border Terrier 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 Border Terrier 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 Border Terrier breed standard (11.5–15.5 lbs). While estimates can begin at 6 weeks, data collected after the 12-week mark provides the highest statistical confidence.

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