Aging Charts

Aging Chart for Dogs		Aging Chart for Cats
Comparative Age		Comparative Age
Dog	Human	Cat	Human
6 months	5-6 years	6 months	9-10 years
8 months	9-10 years	8 months	12-13 years
1 year	14-15 years	1 year	15 years
2 years	22-24 years	2 years	24 years
3	28	3	32
4	32	4	36
5	36	5	40
6	40	6	44
7	44	7	48
8	48	8	52
9	52	9	56
10	56	10	60
11	60	11	64
12	64	12	68
13	68	13	72
14	72	14	76
15	76	15	80
16	80	16	84.5
17	84	17	89
18	88	18	93.5
19	92	19	98
20	96	20	101
21	100	21	104
22	104	22	107
23	108	23	110
		24	113
		25	116

Comments: This aging chart would be most appropriate for dogs < 20-22 lbs (or 9-10 kgs) of body weight. Also, since they do not tend to live as long as the smaller breeds, for larger size and weight dogs, the relative aging compared to humans varies more substantially (especially in the giant breeds). For a comparison, please reference Dr. Fred Metzger's "Dog Age Chart" (Courtesy of Pfizer Animal Health) or FPSi's "Dog Years" chart (Specialist in French property).		Comments: Cats tend to age more similarly to small dogs. Yet, it is much more common to see a cat older than 20 years old than it would be for a comparably sized dog. So, if we really want to compare cat aging to human aging, and 100 years old is the template, we should use a chart similar to what is shown/estimated above.

Aging Chart for Dogs