Great Dane Puppy Weight Calculator

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

Great Dane Growth Guide

Breed Overview

The Great Dane, often referred to as the “Apollo of Dogs,” is a giant breed with noble origins in Germany. Originally bred for boar hunting and guarding estates, today’s Great Dane is more likely to be found lounging as a loyal, affectionate family companion. Despite their imposing size, they are gentle, friendly, and often referred to as “gentle giants.”

Due to their enormous size and rapid growth rate, growth tracking is especially critical for Great Danes. Improper weight gain or excessive growth too quickly can lead to serious orthopedic issues, such as hip dysplasia and joint deformities.

Great Dane Growth Chart & Weight Ranges

Below is a general guideline of typical weight ranges for growing Great Dane puppies. Keep in mind that males are typically larger, with differences becoming more apparent after 4 months of age.

Age	Weight Range (Male)	Weight Range (Female)
4 weeks	5 – 8 lbs	4 – 7 lbs
8 weeks	18 – 26 lbs	15 – 22 lbs
3 months	35 – 50 lbs	30 – 45 lbs
4 months	50 – 65 lbs	40 – 55 lbs
6 months	70 – 100 lbs	60 – 85 lbs
9 months	90 – 120 lbs	75 – 105 lbs
12 months	100 – 140 lbs	85 – 115 lbs
18 months	115 – 170 lbs	100 – 140 lbs
Adult (24 mo)	120 – 180 lbs	110 – 140 lbs

Note: Males typically weigh 10–40 lbs more than females and stand taller at the shoulder.

How Much Bigger Will My Great Dane Puppy Get?

Great Dane puppies reach around 50% of their adult weight by 4–5 months of age, and most will reach 90% of their adult height by 9–10 months. However, they continue to gain muscle mass and fill out until about 24 months, particularly in males.

To estimate adult size:
Double your Great Dane’s weight at 16 weeks to get a rough idea of their adult weight. For instance, a 60 lb puppy at 4 months might mature to around 120 lbs.

Important exception: As a giant breed, Great Danes grow longer than most dogs—up to 2 years of age, so weight gain after one year is normal.

For more in-depth breed information, visit:

• Great Dane Club of America (GDCA)
• AKC Breed Profile: Great Dane

Great Dane Growth Tips

Nutrition

• Feed a large or giant breed puppy food that is specifically formulated to support controlled growth and joint health.
• Avoid high-calorie foods or supplements that promote fast growth—this increases the risk of orthopedic disease.
• Feed 3 meals per day until 6 months, then reduce to 2 meals daily.
• Monitor body condition regularly to avoid overfeeding.

Exercise

• Limit high-impact activities (like running or jumping) until after 18–24 months when growth plates have closed.
• Encourage regular but moderate exercise to maintain muscle tone and prevent obesity.
• Avoid slick surfaces and excessive stair climbing during the first year.

Health Watch

• Common growth-related concerns in Great Danes include:
  • Hip and elbow dysplasia
  • Hypertrophic osteodystrophy (HOD)
  • Panosteitis (growing pains)
  • Gastric torsion (bloat), especially in adolescence
• Regular vet checkups and joint screenings are essential during their growth phase.