This weight chart is a complete guesstimate of how big (weight-wise) your Chihuahua will be. Please remember this is completely a guesstimate! There are many other things you should remember to factor into the weight of your puppy, i.e.: bone structure, body build, eating habits, types of food it eats, height etc...

Note: all weight is in ounces unless otherwise specified!

Birth 2.5 oz 2.75 oz 3 oz 3.5 oz 4 oz 4.25 oz 4.5 oz 5 oz 5.5 oz
1 wk 3.75 4 5 5.5 6.5 7 8 9 9.5
2 wks 5 5.5 6.5 7 9 10 11 12.5 13.5
3 wks 6 7 8 9 11 13 14 1 lb 17.5
4 wks 7 8 9.5 11 13 15 17 19 1 1/4 lb
5 wks 8 9 11 13 15 17 19.5 22 2 lb
6 wks 9 11 12.5 15 17.5 1 1/4 lb 22 1 1/2 lb 27
7 wks 10 12 14.5 17 19.5 22 1 1/2 lb 27 30
8 wks 11 13 1 lb 19 21.5 1 1/2 lb 27 29 33
9 wks 12 15 17.5 20 23 26 29 32 35
10 wks 13 16 19 22 25 1 3/4 lb 31 34 38
11 wks 14 17 21 1 1/2 lb 27 31 34 37 42
12 wks 15 19 22 26 30 33 37 41 45
13 wks 1 lb 20 1 1/2 lb 1 3/4 lb 2 lb 36 2 1/2 lb 2 3/4 lb 49
14 wks 17 22 26 30 34 39 43 47 52
15 wks 19 23 1 3/4 lb 2 lb 37 41 46 51 3 1/2 lb
16 wks 20 25 30 34 39 2 3/4 lb 49 54 59
17 wks 21 26 31 36 41 46 51 57 62
18 wks 22 1 3/4 lb 33 37 43 3 lb 54 60 65
19 wks 23 29 34 39 2 3/4 lb 50 3 1/2 lb 62 67
20 wks 1 1/2 lb 30 35 41 46 3 1/4 lb 58 64 70
21 wks 25 31 2 1/4 lb 42 3 lb 54 3 3/4 lb 66 4 1/2 lb
22 wks 25 2 lb 37 43 49 3 1/2 lb 62 4 1/4 lb 74
23 wks 26 33 38 2 3/4 lb 50 57 4 lb 70 4 3/4 lb
24 wks 26 33 39 45 51 58 65 71 78
25 wks 27 34 2 1/2 lb 46 3 1/4 lb 59 66 4 1/2 lb 79
6 mo. 1 3/4 lb 2 1/4 lb 2 3/4 lb 47 53 3 3/4 lb 67 73 5 lb
Grown 2 lb 2 1/2 lb 3 lb 3 1/2 lb 4 lb 4 1/2 lb 5 lb 5 1/2 lb 6 lb

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