Friends For the Dearborn Animal Shelter Pet Age Chart

Meet Your BFF Here!

(to receive eNews and
discounts on events and merchandise)

Home
PetTraining

Adopt Shop

Shelter HappyTails

Donate Information

Calendar NewShelter

Volunteers About Us

Pooch and Puppy Parties

Friends Educational Information
How old is your beloved pet?

The way that dogs and cats mature doesn't correspond exactly to the way that humans do. It was once thought that 1 year in the life of a dog or cat was equivalent to 7 years of a human life. Recently, a new scale has been accepted. Dogs and cats grow up very quickly during the first two years of life and then mature more slowly after that. Large dogs tend to have shorter lifespans than small dogs (see chart). Cats tend to live longer than dogs. The general consensus is that at about age 7 a dog or cat can be considered "middle-aged," and age 10 and beyond "old".

Purina has sponsored a site (as of 6/06) where you can enter information about your dog's health, breed, weight and behavior to see if these are likely to affect it's lifespan. It is based on the methods used to see how diet, exercise, smoking, etc. affect human lifespan predictions.

Cat and Dog Age	Human's Age
6 months	10 years
8 months	13 years
1 year	15 years
2 years	Cats - 24 years Dogs - 22 years
4 years	32 years
6 years	40 years
8 years	48 years
10 years	56 years
12 years	64 years
14 years	72 years
16 years	80 years
18 years	88 years
20 years	96 years
21 years	100 years

A Dog's Age in Human Years
Age	Up to 20 lbs	21-50 lbs	51-90 lbs	Over 90 lbs
5	36	37	40	42
6	40	42	45	49
7	44	47	50	56
8	48	51	55	64
9	52	56	61	71
10	56	60	66	78
11	60	65	72	86
12	64	69	77	93
13	68	74	82	101
14	72	78	88	108
15	76	83	93	115
16	80	87	99	123
17	84	92	104	Purple numbers = Senior Red numbers = Geriatric
18	88	96	109
19	92	101	115
20	96	105	120
Chart developed by Dr. Fred L. Metzger, DVM, State College, PA. Courtesy of Pfizer Animal Health.

Hit Counter

Home Adopt Donate Shelter Info Calendar Shop Happy Tails About Us Volunteers New Shelter eNews

Page Last modified April 11, 2008
Copyright © Friends For the Dearborn Animal Shelter All rights reserved. Adoptions, Donations, and Volunteers always appreciated.
2661 Greenfield, Dearborn, MI 49120, 313-943-2697, friends@dearborn-animals.com, www.dearborn-animals.com