Calculating Your Dog's Real Age

We know the old rule of thumb,  one year for a human is 7 dog years. Well, not so fast. How many “100” year old humans can run laps around you? Here is a quick reference guide to calculate what stage of life your dog may be in. 

The chart below, use these general ranges for dog size: • Small dog = 20 pounds or less • Medium dog = 21-50 pounds • Large dog= More than 50 pounds

Dog's Age Age in Human Years
Small breed Medium breed Large breed
1 15 15 15
2 24 24 24
3 28 28 28
4 32 32 32
5 36 36 36
6 40 42 45
7 44 47 50
8 48 51 55
9 52 56 61
10 56 60 66
11 60 65 72
12 64 69 77
13 68 74 82
14 72 78 88

After 14 years of age, who knows? It’s probably safe to say that if you have a small to medium breed dog, 15-16 years is like 90, and 17 or more years is like a 100. For a large breed, 15 years is like 90, and 16 + is like a 100. There is no exact way, but hopefully this correlates a little closer to human life spans, and provides you with a little more knowledge when looking at your dog’s activity and health level.

age dogs

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