Northernaire Kennels Great Dane Growth Chart AGE WEIGHT HEIGHT Birth weight 1-2 lbs 1 week 2-3 lbs. 2 weeks 3-5 lbs. 3 weeks 4-7 lbs. 4 weeks 5-8 lbs. 6 weeks 10-20 lbs. 2 months 15-30 lbs. 13-18 inches 3 months 25-45 lbs. 17-23 inches 4 months 45-65 lbs. 20-25 inches 5 months 60-85 lbs. 24-30 inches 6 months 65-100 lbs. 26-33 inches 7 months 70-110 lbs. 27-34 inches 8 months 80-120 lbs. 28-34 inches 9 months 85-140 lbs. 28-35 inches 1 year 95-140 lbs. 29-36 inches Females 110-145 lbs. 30-34 inches Males 135-170 lbs. 33-36 inches ADULT Great Danes are a giant breed and therefore require special attention to their diets during their growing years. Check out www.danesonline.com for recommendations on the diet of great Danes not only during their growing years but throughout their life. There are many opinions on the subject of what to feed. I encourage you to do your own research, talk to your breeder and choose the diet which is best for you and your Dane.