The Chihuahua Weight chart is great to use as a guide to estimate a mature weight of a puppy within a quarter of a pound or so. This table is only a guide, however, because many things can effect the mature weight of a puppy, weight may vary depending on 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.
Birth | 2 ½ oz | 2 ¾ oz | 3 oz | 3 ½ oz | 4 oz | 4 ¼ oz | 4 ½ oz | 5 oz | 5 ½ oz |
1 wk | 3 ¾ | 4 | 5 | 5 ½ | 6 ½ | 7 | 8 | 9 | 9 ½ |
2 wk | 5 | 5 ½ | 6 ½ | 7 | 9 | 10 | 11 | 12 ½ | 13 ½ |
3 wk | 6 | 7 | 8 | 9 | 11 | 13 | 14 | 16 | 17 ½ |
4 wk | 7 | 8 | 9 ½ | 11 | 13 | 15 | 17 | 19 ½ | 21 |
5 wk | 8 | 9 | 11 | 13 | 15 | 17 | 19 ½ | 22 | 24 |
6 wk | 9 | 11 | 12 ½ | 15 | 17 ½ | 20 | 22 | 24 | 27 |
7 wk | 10 | 12 | 14 ½ | 17 | 19 ½ | 22 | 24 ½ | 27 | 30 |
8 wk | 11 | 13 | 16 | 19 | 21 ½ | 24 | 27 | 29 | 33 |
9 wk | 12 | 15 | 17 ½ | 20 | 23 | 26 | 29 | 32 | 35 |
10 wk | 13 | 16 | 19 | 22 | 25 | 28 | 31 | 34 | 38 |
11 wk | 14 | 17 | 21 | 24 | 27 | 31 | 34 | 37 | 42 |
12 wk | 15 | 19 | 22 | 26 | 30 | 33 | 37 | 41 | 45 |
13 wk | 16 | 20 | 24 | 28 | 32 | 36 | 40 | 44 | 49 |
14 wk | 17 | 22 | 26 | 30 | 34 | 39 | 43 | 47 | 52 |
15 wk | 19 | 23 | 28 | 32 | 37 | 41 | 46 | 51 | 56 |
16 wk | 20 | 25 | 30 | 34 | 39 | 44 | 49 | 54 | 59 |
17 wk | 21 | 26 | 31 | 36 | 41 | 46 | 51 | 57 | 62 |
18 wk | 22 | 28 | 33 | 37 | 43 | 48 | 54 | 60 | 65 |
19 wk | 23 | 29 | 34 | 39 | 44 | 50 | 56 | 62 | 67 |
20 wk | 24 | 30 | 35 | 41 | 46 | 52 | 58 | 64 | 70 |
21 wk | 25 | 31 | 36 | 42 | 48 | 54 | 60 | 66 | 72 |
22 wk | 25 | 32 | 37 | 43 | 49 | 56 | 62 | 68 | 74 |
23 wk | 26 | 33 | 38 | 44 | 50 | 57 | 64 | 70 | 76 |
24 wk | 26 | 33 | 39 | 45 | 51 | 58 | 65 | 71 | 78 |
25 wk | 27 | 34 | 40 | 46 | 52 | 59 | 66 | 72 | 79 |
26 wk | 27 | 34 | 40 | 47 | 53 | 60 | 67 | 73 | 80 |
18 Months (full Grown | 2 Ibs. | 2 ½ Ibs, | 3 Ibs. | 3 ½ Ibs. | 4 Ibs. | 4 ½ Ibs, | 5 Ibs. | 5 ½ Ibs. | 6 Ibs. |
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.. New York, NY.