Chihuahua Weight Chart

The Chihuahua Weight Chart is presented as a guide to estimate a mature weight within a quarter of a pound or so. Weight estimates before the age of 8 weeks old are difficult to predict and are usually inaccurate because the puppy may still be nursing or in the weaning stage and may be heavier due to fat content from the mother's rich milk.

While this chart has proven through the years to be a good guide please be aware that many things can affect the mature weight of a puppy. Factors that can affect the mature weight include the breeder's own bloodline, genetics, diet, activity level and the individual health of the puppy.

.A Chihuahua that is allowed to overeat or snack on fatty foods (such as tablescraps or other fatty human foods) may become obese and will therefore weigh more than a Chihuahua that is fed a diet appropriate for small dogs. Any dog that is fed an appropriate diet but lacks proper exercise may weigh more than expected.

A Chihuahua that has a health problem may, depending on the type of problem, weigh more or less than what is considered average.

This weight chart is intended only for purebred Chihuahuas, and should be used as a guide only for puppies from a breeder that is knowledgeable about their bloodline and who knows and understands the genetic history of each of their breeding dogs.

The left-hand column of the table gives the age of the puppy in weeks. To determine the puppy's expected weight when fully grown, weigh the puppy in ounces (use a good quality scale such as a postal scale); compare the line of figures (ounces) against the number of weeks of age, and take the figure nearest to the present weight of the puppy. The expected adult weight of the puppy will be given at the foot of the column in which the figure nearest to its weight occurs. NOTE: Weights before the age of eight weeks are liable to vary.

 

Birth 2½ oz. 2¾ oz. 3 oz. 3½ oz. 4 oz. 4¼ oz. 4½ oz. 5 oz. 5½ oz.
1 week 4 5 7 8 9
2 weeks 5 7 9 10 11 12½ 13½
3 weeks 6 7 8 9 11 13 14 16 17½
4 weeks 7 8 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 was extracted from a book titled "The Complete Chihuahua Encyclopedia" by Hilary Harmar, which was published in 1972 by the Arco Publishing Company, Inc., New York, NY. The book is no longer in print and the publisher is no longer in business. If you present this chart on your website please leave the credits regarding the author and publisher intact.

Thank you.

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