Puppy Growth Chart by Breed Size

How big should an 8-week-old golden retriever be? A 16-week-old chihuahua? A 6-month-old bernese mountain dog? The honest answer involves a range, not a number, and the range depends on adult size category, not breed alone. Most online answers give a single weight that may or may not match your puppy. The Puppy Growth Chart is the document that gives you the actual expected range so you can spot growth problems early without spiraling over every gram.

This is a reference document. Not a tracker. The companion document for ongoing weight logging is the Puppy Weight Tracker spreadsheet, which is sold separately or bundled.

What this document does:

It provides expected weight ranges across five adult-size categories (toy, small, medium, large, giant) at seven age milestones (8 weeks, 12 weeks, 16 weeks, 6 months, 9 months, 12 months, 18 months). Find your puppy's expected adult weight category, look up the current age, and you see the expected range your puppy should fall within.

The chart includes interpretive guidance for reading the growth curve: when to expect rapid gain, when growth slows, why large and giant breeds keep growing through 18 to 24 months, and when premature spay or neuter timing affects growth plate closure. The chart closes with a checklist of warning signs that warrant a vet conversation.

What is included:

• 1-page reference chart with weight ranges by size category and age
• Five adult-weight categories: toy (under 10 lb), small (10-25 lb), medium (25-50 lb), large (50-90 lb), giant (90+ lb)
• Seven age milestones from 8 weeks through 18 months
• Reading-the-curve guidance covering rapid growth, slow-growth phases, and the large-breed extended growth window
• When-to-call-the-vet checklist for owners worried about their puppy's trajectory
• Reference to the 9-point body condition scale that vets use for overall health assessment

Format and how it works:

Word version for digital editing and a PDF version for printing or screen reference. Most owners print one copy and pin it to the fridge near the Puppy Weight Tracker so the weekly weigh-in can be compared against the expected range without opening another document.

The chart is intentionally a range rather than a single number. Individual variation is normal. A puppy on the low side of the range is not automatically a problem. A puppy tracking consistently outside the range across multiple weigh-ins is worth a vet conversation.

Why this version is different:

Most puppy growth charts on the internet are breed-specific guesses that ignore the wide normal variation within a breed, or generic age-based numbers that ignore breed size category entirely. This chart splits the difference. Adult size category is the strongest predictor of normal puppy growth, and within each category the range covers most breeds at most ages.

The chart is built from working-breeder observation across multiple breeds plus published veterinary norms. It is a planning aid, not a diagnostic tool. Always defer to your vet for body condition assessment.

Who this is for:

For new puppy owners with a mixed-breed puppy, a rare breed, or a breed where published weight curves are inconsistent. For owners who want a single reference card rather than searching breed forums every week. For working breeders who want a generic chart they can hand to every buyer regardless of breed. Pairs naturally with the Puppy Weight Tracker (weekly logging) and the Vet Visit Tracker (visit-level weight capture).

Get the Growth Chart on its own, or open the bundle for the full New Puppy Kit at the kit price.