Greyhound Puppy Weight Calculator

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

Greyhound Breed Profile & Growth Guide

Breed Overview

The Greyhound is one of the oldest and fastest dog breeds in the world, with origins tracing back over 5,000 years to ancient Egypt. Bred for hunting and coursing game, Greyhounds are built for speed with a slim, aerodynamic body and long legs. Despite their athletic prowess, they are often referred to as “45-mph couch potatoes” due to their calm and affectionate nature indoors.

Greyhounds are gentle, quiet, and friendly dogs that thrive in both active and relaxed homes. They are intelligent, easy to train, and typically good with children and other dogs, especially when socialized early. While they have strong prey drives, many Greyhounds adapt well to life as affectionate companions after their racing or coursing careers.

Size Category: Large
Greyhounds are classified as a large breed, with adult males typically weighing between 65 and 80 lbs and females between 50 and 65 lbs. Because their build is lean and muscular with minimal body fat, tracking growth is essential to ensure they maintain a healthy weight and skeletal development, especially during the fast-growing puppy stage.

For more details on breed characteristics, visit the American Kennel Club’s Greyhound page.

Greyhound Growth Chart & Weight Ranges

Age	Male Weight (lbs)	Female Weight (lbs)
4 weeks	6 – 8	5 – 7
8 weeks	12 – 16	10 – 14
3 months	25 – 30	20 – 28
4 months	32 – 38	28 – 34
6 months	45 – 55	40 – 50
9 months	55 – 68	50 – 60
12 months	65 – 80	50 – 65
18 months	68 – 85 (full)	52 – 68 (full)

Note: Males are generally 5–15 lbs heavier than females and may grow slightly taller and more muscular.

How Much Bigger Will My Greyhound Puppy Get?

Greyhounds experience steady growth in the first year, with the most rapid development happening in the first 6–8 months. You can expect the following growth milestones:

• 50% of adult weight by 4–5 months
• 75% of adult weight by 6–7 months
• Near full adult weight by 12 months
• Fully filled out by 18 months, especially in muscles and chest

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

Exceptions to note:
While Greyhounds typically reach their adult height by 12 months, their musculature continues to develop into their second year. Overweight puppies may look bulky, but due to their thin frames, even minor weight gain can stress their joints or mask potential health concerns.

For more on Greyhound health, refer to the Greyhound Club of America.

Greyhound Growth Tips

Nutrition

• Feeding Schedule: 3 meals daily until 6 months, then transition to 2 meals.
• Puppy Diet: Choose a high-quality large-breed puppy formula with balanced calcium-to-phosphorus ratios to support lean muscle development without encouraging overly rapid growth.
• Avoid overfeeding—Greyhounds have sensitive stomachs and a tendency toward bloat if fed too much at once.

Exercise

• Greyhound puppies are playful but don’t need excessive exercise. Short, gentle walks and supervised play are ideal.
• Avoid forced running or long-distance jogging until bones and joints are mature—typically after 12–18 months.
• Provide space for short sprints and mental enrichment rather than endurance-based activities.

Health Watch

• Bloat (Gastric Dilatation-Volvulus): While less common than in deep-chested giant breeds, Greyhounds are still at risk. Feed smaller, frequent meals and avoid exercise after eating.
• Hip dysplasia: Not as common as in heavier breeds but still worth monitoring.
• Growth plate injuries: Due to their long limbs and light build, avoid jumping from high places during puppyhood.