How Old is My Dog?

The old myth that 1 dog year = 7 human years is too simple and not accurate. Dogs age much faster in their early years and the rate of aging depends on their size and breed.

Here’s a more accurate breakdown:

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???? General Dog-to-Human Age Comparison:

Dog’s Age	Small Dog (under 20 lbs)	Medium Dog (20–50 lbs)	Large Dog (50–100+ lbs)
1 year	15 human years	15 human years	14 human years
2 years	24 human years	24 human years	22 human years
3 years	28	28	31
5 years	36	37	45
7 years	44	47	58
10 years	56	60	75
13 years	68	74	96
15 years	76	83	110

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???? Key Notes:

• Small dogs tend to live longer and age more slowly after age 2.
• Large breeds age more quickly and typically have shorter lifespans.
• Mixed breeds often fall somewhere in the middle.