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This chart was taken from
The Complete Chihuahua Encyclopedia by Hilary Harmer. This chart
can be used to provide an estimate for the weight of your puppy full
grown. However, this chart isn't always correct, it is simply meant
to be used as a guideline. Other things for estimating a puppy's adult
weight should be taken into consideration as well, such as knowing your
lines. No puppy's adult weight can be guaranteed, only an estimate can
be provided.
| 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 lb. |
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