Dog Age Calculator

Created by Luciano Mino
Based on research by
Tina Wang, Jianzhu Ma, A. Hogan, Samson H. Fong, Katherine Licon, B. Tsui, J. Kreisberg, P. Adams, Anne-Ruxandra Carvunis, D. Bannasch, E. Ostrander, T. Ideker Quantitative translation of dog-to-human aging by conserved remodeling of epigenetic networks
Last updated: Jul 01, 2022

The dog age calculator will find the answer to the most common question a dog owner asks: how old is my dog in human years? 🐕

There's no simple way to accurately convert dog to human years since each dog year is not equivalent to one human year. Spoiler: one dog year is not equal to seven human years either.

The relationship is non-linear (like in exponential growth). That's why you need either a dog year calculator or a dog years chart.

Luckily, we have both. With this tool:

  • Know how old is 13 in dog years;
  • Find how many dog years is one human year;
  • Convert any number of dog years to human years; and
  • Find exactly the conversion between a labrador dog years and human years based on research.

How to use the dog age calculator

The dog age and human years conversion varies by breed and size. No formula covers every case.

Generally speaking, small breeds live longer. This tool aims to be as precise and general as possible and lists three options for you to input information about your dog:

  • Small size.
  • Medium size; and
  • Large size.

Just input your dog's size and age, and the calculator will do the rest! You can also check the dog age chart below.

🙋 Even though there are some cases of dogs living longer, you can only input years lower than 20 in the dog age field to keep the conversion accurate.

Dog age chart/table

You can also manually find how old your dog is in human years by searching it in the dog age table:

Dog years

Human Years (Small)

Human Years (Medium)

Human Years (Large)

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

15

76

83

93

16

80

87

99

17

84

92

104

18

88

96

109

19

92

101

115

For example, if we want to find how old is 13 in dog years, we can seek the values in the table for each dog size. Here we find that 13 dog years is equal to:

  • 68 years for a small dog;
  • 74 years for a medium-size dog; and
  • 82 years for a large dog.

Labrador research

In our dog age calculator, we have included a scientifically proven formula for calculating the age of the Labrador breed.

You can read more about this formula and the research behind it in the paper written by the team led by Trey Ideker from the University of California, San Diego called 'Quantitative translation of dog-to-human aging by conserved remodeling of epigenetic networks'.

✅ To make your pet have a long and healthy life, make sure it eats plenty of food (but not too much, or it will need to do additional running to burn calories), sleeps enough so it can have lots of energy, and visit the vet at least twice a year!

Luciano Mino
Breed
Labrador
Dog age
Human age
What makes Labradors so special? Check out the section titled 'Labrador research'!
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