How Old Is A Dog In Human Years?

Dog years are multiplied by seven to get a human age, as a dog lifespan is a seventh of a persons. Converting dog years to human years depends on various factors as toy, small, medium, large and giant dogs mature differently, which is why dogs up to 50 lbs. can live longer than pups up to 100 lbs.

Experts agree, however, that the level of maturity a dog reaches in the first two years is similar to that of a 14-year-old human, but that is where the similarity ends. The age of a pup in dog years to human years depends on the following:

• Breed
• Size
• Weight
• Activity level
• Diet
• Lifestyle
• Health
• Lifespan

Comparing age: Dog years vs Human years

While most pet parents have been calculating their pup’s dog to human years for the longest time, the method has no basis of truth and human years to dog years conversion is mostly just for entertainment. Just for fun, take a look at the dog years converter and estimate how old the age of a toy, small, medium, large and giant dog breed is in human years.

Toy size dogs: Up to 10 lbs.

Breeds	Dog Age	Human Age
ChihuahuaJapanese ChinMalteseManchester TerrierPapillionPomeranianToy Fox TerrierYorkshire Terrier	0-9 mths	Younger than 15
	10-11 mths	Younger than 15
	1	15
	2	23
	3	28
	4	31
	5	35
	6	38
	7	42
	8	45
	9	49
	10	52
	11	56
	12	59
	13	63
	14	66
	15	70
	16	74

*Source: Pro Plan Dog Age Calculator

Small size dogs: Up to 20 lbs.

Breeds	Dog Age	Human Age
AffenpinscherAustralian TerrierBichon FriseBorder TerrierBoston TerrierBrussels GriffonCairn TerrierCavalier King Charles SpanielChinese CrestedDachshundDandie Dinmont TerrierEnglish Toy SpanielFrench BulldogHavaneseItalian GreyhoundLakeland TerrierLhasa ApsoLöwchenMiniature PinscherMiniature SchnauzerNorfolk TerrierNorwich TerrierPekingesePugSchipperkeScottish TerrierShih TzuSilky TerrierSkye TerrierTibetan SpanielWest Highland White TerrierXoloitzcuintli	0-9 mths	Younger than 15
	10-11 mths	Younger than 15
	1	15
	2	23
	3	28
	4	32
	5	36
	6	40
	7	44
	8	48
	9	52
	10	56
	11	60
	12	64
	13	68
	14	72
	15	76
	16	80
	17	84
	18	88
	19	92
	20	96

*Source: Pro Plan Dog Age Calculator

Medium size dogs: Up to 50 lbs.

Breeds	Dog Age	Human Age
Airedale TerrierAmerican Eskimo DogAmerican FoxhoundAmerican Water SpanielAustralian Cattle DogBasenjiBeagleBearded CollieBedlington TerrierBorder CollieBrittanyBull TerrierBulldogCanaan DogCardigan Welsh CorgiChinese Shar-PeiDachshundEnglish Cocker SpanielEnglish Springer SpanielField SpanielFinnish SpitzIrish TerrierKeeshondKerry Blue TerrierManchester TerrierMiniature Bull TerrierPembroke Welsh CorgiPetit Basset Griffon VendeenPuliShetland SheepdogShiba InuSoft Coated Wheaten TerrierStaffordshire Bull TerrierStandard SchnauzerSussex SpanielTibetan TerrierWelsh TerrierWhippetWire Fox Terrier	0-9 mths	Younger than 15
	10-11 mths	Younger than 15
	1	15
	2	24
	3	29
	4	34
	5	38
	6	42
	7	47
	8	51
	9	56
	10	60
	11	65
	12	69
	13	74
	14	78
	15	83
	16	87

*Source: Pro Plan Dog Age Calculator

Large size dogs: 50+ lbs.

Breeds	Dog Age	Human Age
Afghan HoundAiredale TerrierAkitaAlaskan MalamuteAmerican Staffordshire TerrierAustralian ShepherdBasset HoundBearded CollieBelgian MalinoisBelgian Shepherd LaekenoisBelgian TervurenBernese Mountain DogBlack and Tan CoonhoundBloodhoundBorzoiBouvier des FlandresBoxerBriardBullmastiffChesapeake Bay RetrieverChow ChowClumber SpanielCollie (Rough)Curly-Coated RetrieverDalmatianEnglish FoxhoundEnglish SetterFlat-Coated RetrieverGerman Shepherd DogGerman Shorthaired PointerGerman Wirehaired PointerGolden RetrieverGordon SetterGreyhoundHarrierIbizan HoundIrish SetterIrish Water SpanielKomondorLabrador RetrieverNorwegian ElkhoundOld English SheepdogOtterhoundPharaoh HoundPointerPoodlePortuguese Water DogRhodesian RidgebackSalukiSamoyedSiberian HuskySpinone ItalianoVizslaWeimaranerWirehaired Pointing Griffon	0-9 mths	Younger than 15
	10-11 mths	Younger than 15
	1	15
	2	23
	3	28
	4	31
	5	35
	6	38
	7	42
	8	45
	9	49
	10	52
	11	56
	12	59
	13	63
	14	66
	15	70
	16	74
	17	78

*Source: Pro Plan Dog Age Calculator

Giant size dogs: 100+ lbs.

Breeds	Dog Age	Human Age
Anatolian Shepherd DogBullmastiffGiant SchnauzerGreat DaneGreat PyreneesGreater Swiss Mountain DogIrish WolfhoundKurvaszMastiffNewfoundlandRottweilerSaint BernardScottish Deerhound	0-9 mths	Younger than 15
	10-11 mths	Younger than 15
	1	15
	2	23
	3	28
	4	31
	5	35
	6	38
	7	42
	8	45
	9	49
	10	52
	11	56
	12	59
	13	63

*Source: Pro Plan Dog Age Calculator