EVERY KIND OF GOOD DOG

Dog age calculator
by breed.

Find a breed below to open the calculator with a suggested adult size. Your dog’s actual fully grown weight always takes priority.

Find a breed

31 breed suggestions

Mixed breed or not listed? Choose their adult size directly →

Small dogs 11 suggestions

Boston TerrierStart with small size →Cavalier King Charles SpanielStart with small size →ChihuahuaStart with small size →Dachshund (miniature)Start with small size →MalteseStart with small size →Miniature SchnauzerStart with small size →PomeranianStart with small size →Poodle (toy)Start with small size →PugStart with small size →Shih TzuStart with small size →Yorkshire TerrierStart with small size →

Medium dogs 8 suggestions

BeagleStart with medium size →Border CollieStart with medium size →Cocker SpanielStart with medium size →English BulldogStart with medium size →French BulldogStart with medium size →Pembroke Welsh CorgiStart with medium size →Shiba InuStart with medium size →Siberian HuskyStart with medium size →

Large dogs 7 suggestions

BoxerStart with large size →DalmatianStart with large size →Doberman PinscherStart with large size →German ShepherdStart with large size →Golden RetrieverStart with large size →Labrador RetrieverStart with large size →Poodle (standard)Start with large size →

Giant dogs 5 suggestions

Great DaneStart with giant size →MastiffStart with giant size →NewfoundlandStart with giant size →RottweilerStart with giant size →Saint BernardStart with giant size →

Breed helps choose a size.

These suggestions are starting points, not breed-specific biological equations. Dogs within a breed vary in weight; some sit near a category boundary. You can override the suggested size in the calculator.

What about mixed breeds?

No breed label is required. Choose the closest adult-weight category. For a growing puppy, use expected adult size; if you do not know it, compare two sizes and ask your vet for context.

All breed links open an editable five-year example. Enter your own dog’s age before using the result.

Dog age calculatorby breed.