Manchester Terrier Puppy Weight Calculator

Calculate the adult weight for your Manchester Terrier. Just type your puppy’s current weight and age, and see how big your puppy gets.

Manchester Terrier Breed Profile & Growth Guide

Breed Overview

The Manchester Terrier is a sleek, agile, and intelligent breed originally developed in 19th-century England to control vermin and hunt small game. With its elegant, streamlined body and keen expression, the Manchester Terrier combines speed and style with a strong prey drive and unwavering loyalty to its family.

This breed comes in two size varieties recognized by the American Kennel Club (AKC): Toy (under 12 lbs) and Standard (12–22 lbs). Both types share the same core temperament—alert, spirited, and affectionate—but have different growth expectations, so accurate weight tracking is key during the puppy stage.

Size Category: Small to Medium
The Manchester Terrier is considered small (Toy variety) or medium (Standard variety) depending on the type. Tracking growth is particularly important to ensure healthy development, avoid overfeeding, and prevent early-onset joint or dental problems—especially for Toy Manchesters, which are prone to delicate bone structure issues.

Manchester Terrier Growth Chart & Weight Ranges

Standard Manchester Terrier Weight Chart

Age	Male Weight (lbs)	Female Weight (lbs)
4 weeks	2.0 – 2.8	1.8 – 2.5
8 weeks	4.0 – 5.5	3.5 – 5.0
12 weeks	6.0 – 7.5	5.5 – 7.0
4 months	7.5 – 9.0	7.0 – 8.5
6 months	9.5 – 12.5	9.0 – 11.0
9 months	11.5 – 14.5	11.0 – 13.5
12 months	12.0 – 22.0	12.0 – 20.0

Toy Manchester Terrier Weight Chart

Age	Male Weight (lbs)	Female Weight (lbs)
4 weeks	0.8 – 1.2	0.7 – 1.1
8 weeks	1.5 – 2.5	1.3 – 2.2
12 weeks	2.5 – 3.5	2.3 – 3.3
4 months	3.5 – 5.0	3.3 – 4.5
6 months	4.5 – 6.5	4.3 – 6.0
9 months	5.5 – 8.0	5.0 – 7.5
12 months	6.0 – 12.0	6.0 – 10.0

Note: Males generally weigh slightly more than females in both size types, typically by 1–3 lbs.

How Much Bigger Will My Manchester Terrier Puppy Get?

Most Manchester Terrier puppies grow rapidly through the first 6 months and are close to their adult size by 10–12 months. However, muscle tone and body condition may continue developing until around 18 months, especially for Standards.

• Puppies usually reach 50% of their adult weight by 3–4 months.
• Standard Manchester finish grows around 12–14 months.
• Toy varieties may stop growing slightly earlier, often by 10 months.

Rule of thumb:
Double your Manchester Terrier puppy’s weight at 16 weeks to estimate their adult size.

Exceptions:
While growth usually stabilizes by the 1-year mark, lean muscle and chest development can continue subtly for a few more months.

For additional breed-specific details, visit the Manchester Terrier Club of America.

Manchester Terrier Growth Tips

Nutrition

• Feed a small- or medium-breed puppy formula, depending on the variety.
• Puppies should be fed 3–4 meals per day until 6 months old, then 2 meals per day thereafter.
• Choose foods rich in lean protein, omega-3s, and calcium to support joint health and energy needs.
• Avoid overfeeding; this breed is naturally lean and prone to weight gain if overindulged.

Exercise

• Manchester Terriers are highly energetic and intelligent. Provide daily walks and playtime.
• Avoid repetitive jumping or rough play in young puppies to protect developing joints.
• Mental stimulation is just as important—consider training games and puzzle feeders.

Health Watch

• Growth-related concerns may include luxating patella, Legg-Calvé-Perthes disease (in toy varieties), and dental crowding.
• Maintain regular vet visits, especially in the first year, to monitor healthy growth.
• Ensure proper socialization and gentle handling to support behavioral development.