How big will my 9 weeks old chihuahua get to at full grow age?

I just went to petstore today to pick up a sweater for my 9 weeks old chihuahua and weight him on their weight machine and I was so surprise because he weight at 4 pounds. I wouldnt think it were normal for his breed to be that big at only 9 weeks so I was wonder how can I figure out his full grow weight?

You can't.And, are his innoclulations really complete at nine weeks> Cos, of COURSE you wouldn't have him out inpublic if they weren't, would you?

I have found this chart very goodLVESCHIHUAHUAS.COM ~~ HOME OF CHIELLE CHIHUAHUAS! ~~(Not Just Breeding -- Betterment!)CHIHUAHUA WEIGHT CHARTBirth 2½ oz. 2¾ oz. 3 oz. 3½ oz. 4 oz. 4¼ oz. 4½ oz. 5 oz. 5½ oz. 1 week 3¾ 4 5 5½ 6½ 7 8 9 9½ 2 weeks 5 5½ 6½ 7 9 10 11 12½ 13½ 3 weeks 6 7 8 9 11 13 14 16 17½ 4 weeks 7 8 9½ 11 13 15 17 19½ 21 5 weeks 8 9 11 13 15 17 19½ 22 24 6 weeks 9 11 12½ 15 17½ 20 22 24 27 7 weeks 10 12 14½ 17 19½ 22 24½ 27 30 8 weeks 11 13 16 19 21½ 24 27 29 33 9 weeks 12 15 17½ 20 23 26 29 32 35 10 weeks 13 16 19 22 25 28 31 34 38 11 weeks 14 17 21 24 27 31 34 37 42 12 weeks 15 19 22 26 30 33 37 41 45 13 weeks 16 20 24 28 32 36 40 44 49 14 weeks 17 22 26 30 34 39 43 47 52 15 weeks 19 23 28 32 37 41 46 51 56 16 weeks 20 25 30 34 39 44 49 54 59 17 weeks 21 26 31 36 41 46 51 57 62 18 weeks 22 28 33 37 43 48 54 60 65 19 weeks 23 29 34 39 44 50 56 62 67 20 weeks 24 30 35 41 46 52 58 64 70 21 weeks 25 31 36 42 48 54 60 66 72 22 weeks 25 32 37 43 49 56 62 68 74 23 weeks 26 33 38 44 50 57 64 70 76 24 weeks 26 33 39 45 51 58 65 71 78 25 weeks 27 34 40 46 52 59 66 72 79 26 weeks 27 34 40 47 53 60 67 73 80 18 months (full grown) 2 lb. 2½ lb. 3 lb. 3½ lb. 4 lb. 4½ lb. 5 lb. 5 ½ lb. 6 The Chihuahua Weight Chart is great to use as a guideline to estimate a mature weight within a quarter of a pound or so. This table is used only as a guide, as many things can affect the mature weight of a puppy. Weight may vary depending on its bloodline, genetics, how well the animal is fed, etc. Weight estimates before the age of 8 weeks old are often inaccurate because the puppy is still nursing or being weaned and may be heavier due to fat from the mother's rich milk. This weight chart only works with purebred Chihuahuas. The weight chart is from a book called "The Complete Chihuahua Encyclopedia" by Hilary Harmar, Pub. 1972, Arco Publishing Co., Inc.Click here to go back to Links Page, or:Back To Home Page Send Me an E-Mail! About Me ~Lap Seekers~ Chihuahua Girls Nursery Chihuahua Boys Hopefuls Photo Album Show Time! Special Tribute Merle Chihuahuas

Don't trust that scale - you should be taking him to the vet shortly for a booster shot - make sure they weigh him while you are there and tell you his exact weight. But if that scale was correct, your puppy is already off the chihuahua puppy growth rate chart which someone else posted for you (it only covers chis that will be 6 pounds or less final adult weight). A 9 week old who weighs 4 pounds is likely to end up in the 9 or 10 pound range. I had a 10 weeker who weighed 3 pounds who is 6 months now and pushing 7 pounds - she'll likely make 8 pounds full grown. Chihuahuas over 6 pounds are too big for the AKC show ring, but that doesn't mean they are any less chihuahua. Unfortunately the "in" things right now are unnatural "teacup" size dogs (which is a made-up term by backyard breeders to cheat you on price - but by their definition, final adult teacup weight is supposed to be less than 3 pounds). Teacups are generally unhealthy with much shorter life spans than their properly sized brothers and sisters. Although you may be disappointed your pup isn't tiny, rejoice in the fact that he should be very healthy. If you need any other pointers on chihuahua care, feel free to email me - I would be happy to help. The best advise I can give you quickly is reward good behavior, don't punish bad beyond a firm "no!". You want to nuture your bond so he worships the ground you walk on - then he will do anything for you.