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Puppy Predictor

Brittany Size Calculator

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

Breed Overview

About the Brittany

Bright, fun-loving, and upbeat

Group

Sporting

Size Category

Medium

Lifespan

12-14 years

Full Maturity

15 months

Temperament Traits

BrightFun-lovingUpbeatActiveAttentiveQuick

Growth & Height Benchmarks

Expected Adult Weight

30-40lbs
Professional photograph of a Brittany - Brittany growth standards

Typical Male

30-40 lbs

17.5-20.5" tall

Typical Female

30-40 lbs

17.5-20.5" tall

How the Brittany Calculator Works

1

High-Sensitivity Dynamic Modeling

We use a proprietary High-Sensitivity Dynamic Model calibrated specifically for Brittany 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 Brittany typically reaches its full skeletal structure around 15 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 Brittany breed standard (30–40 lbs). While estimates can begin at 6 weeks, data collected after the 12-week mark provides the highest statistical confidence.

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