Compare your puppy’s weight and height with typical breed-size standards from 8 weeks to adulthood. Enter age, size, weight and height to assess growth.
Puppy Growth Calculator
Compare your puppy’s weight and height against rough size-group growth patterns from 8 weeks to adulthood.
Puppy Details
Growth Assessment
Approximate Progress (by weight)
This bar reflects weight only, not skeletal maturity. Puppies typically gain weight faster than height, so a puppy at “80% of adult weight” is not necessarily 80% “grown.”
Typical 8-Week Weight by Size Group
| Size Group | Typical Weight at 8 Weeks | Typical Adult Weight |
|---|---|---|
| Small | 0.5–1.4 kg | Under 9 kg |
| Medium | 2.7–4.5 kg | 9–23 kg |
| Large | 7–9 kg | 23–45 kg |
| Giant | 7–12 kg | 45+ kg |
What to watch for: A healthy growth curve stays within a consistent range. If weight or height crosses significantly above or below the expected band, or growth flattens, consult your veterinarian. Growth charts are screening tools, not diagnoses. Individual puppies — especially mixed breeds — can deviate substantially from these bands and still be perfectly healthy.
How It Works
This calculator compares your puppy’s current weight and height against approximate ranges for their expected adult size group at the given age. The fractions used are generalized heuristics built from typical breed-size growth patterns — they are not derived from a single published dataset and should be treated as a rough guide.
Size groups (adult weight)
· Small: under 9 kg
· Medium: 9–23 kg
· Large: 23–45 kg
· Giant: over 45 kg
When puppies finish growing
· Small breeds: 6–12 months
· Medium breeds: 12–15 months
· Large breeds: 15–18 months
· Giant breeds: 18–24 months
Height is a rough estimate only
Height grows on a slower curve than weight, so the height band here uses a cube-root approximation. It is not a clinical skeletal measurement and should not be used to assess growth disorders.
Important
Every puppy is an individual. Breed, genetics, nutrition, and sex all affect growth. Use this tool as a conversation starter with your vet — not as a substitute for professional assessment.
Why healthy growth matters: Puppies that grow too quickly — especially large and giant breeds — face higher risks of skeletal disorders like hip dysplasia. Slow, steady growth is generally healthier than maximal growth. If you are concerned about your puppy’s growth rate, ask your veterinarian to plot weight on a breed- or size-specific growth chart.