Weight Chart
Weight Chart
The chihuahua weight chart is great to use as a guide to estimate a mature weight within a quarter of a pound or so. This table is used only as a guide but many things can affect the mature weight of a chihuahua puppy. Weight may vary depending on it's bloodline, genetics, how well the animal is fed, etc. It may weigh more or less then it's ideal weight depending on it's diet and if it becomes obese or not. Weight estimates before the age of 8 weeks old are usually inaccurate because the chihuahua 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 and a chihuahua breeder that is knowledgeable about their bloodline (not just recognizing bloodline's name, but recognizing the actual dogs as well).
| Birth | 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 |
Credits: The Chihuahua weight chart is ©Colonel V. D'Oyly Harmer. The weight chart is from a book called "The Complete Chihuahua Encyclopedia" by Hilary Harmar. Published in 1972 by the Arco Publishing Company, inc. in New York, NY.
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