Old English Sheepdog Puppy Weight Calculator

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

Old English Sheepdog Breed Profile & Growth Guide

Breed Overview

The Old English Sheepdog is a large, shaggy-coated working breed that originated in England during the 18th century. Originally used to drive cattle and sheep to market, the breed is known for its intelligence, stamina, and distinctive “bobtail” look. With their gentle, affectionate, and sometimes clownish personality, they make excellent family companions—provided they have enough space and mental stimulation.

Their long, dense double coat requires regular grooming, and they are known for their playful yet protective nature. Old English Sheepdogs are highly trainable but can have an independent streak, so early socialization and obedience training are key.

Size Category: Large
Adult Old English Sheepdogs typically weigh 60–100 lbs, with males generally being heavier and more muscular than females. Growth tracking is important for this breed because they are prone to joint issues such as hip and elbow dysplasia, which can be aggravated by excess weight or rapid growth. Monitoring their weight helps ensure steady, healthy development.

Old English Sheepdog Growth Chart & Weight Ranges

Age	Male Weight (lbs)	Female Weight (lbs)
4 weeks	7 – 10	6 – 9
8 weeks	16 – 20	14 – 18
12 weeks	25 – 32	23 – 30
4 months	35 – 45	32 – 42
6 months	50 – 65	45 – 60
9 months	60 – 80	55 – 75
12 months	65 – 90	60 – 85
18 months	70 – 100	65 – 90

Gender Differences:
Males generally weigh 5–15 lbs more than females and often have a bulkier frame.

How Much Bigger Will My Old English Sheepdog Puppy Get?

Most Old English Sheepdogs reach about 50% of their adult weight by 5 to 6 months. They achieve most of their height by around 12 months, but muscle and chest development can continue until 18–24 months.

Rule of Thumb:
A good estimate for adult size is to double your puppy’s weight at 16 weeks.

Note:
Because this is a large breed, growth plates may not fully close until about 18 months, meaning you should avoid excessive jumping and high-impact exercise during this period.

For more information on the breed, visit the Old English Sheepdog Club of America or the American Kennel Club breed profile.

Old English Sheepdog Growth Tips

Nutrition

• Feed a high-quality large-breed puppy food to support steady bone and muscle growth.
• Stick to a two- to three-meal schedule per day until 6 months old, then transition to two meals daily.
• Avoid overfeeding, as excess weight increases stress on growing joints.

Exercise

• Provide moderate daily exercise such as short walks and gentle play sessions.
• Avoid high-impact activities, stairs, or long runs until after growth plates have closed.
• Include mental stimulation through obedience training, puzzle feeders, and gentle herding games.

Health Watch

Growth-related concerns for Old English Sheepdogs include:

• Hip and elbow dysplasia—controlled feeding and weight monitoring can help reduce risks.
• Hypothyroidism can affect metabolism and weight.
• Autoimmune conditions—regular vet checks can aid early detection.