Puppy Weight Chart by Age
Use this page as the hub for puppy growth checkpoints. Start with size class, compare the age range, then move into the live calculator or a breed-specific page when you have a fresh weigh-in.
Reviewed by DogWeightCalculator Editorial Team
Updated May 9, 2026
Key takeaways
- A puppy weight chart is a trend tool, not a single-number promise.
- Size class matters because toy puppies settle much earlier than large and giant puppies.
- Fresh weight, age in weeks, sex, breed context, and body condition make estimates more useful.
How to use a puppy weight chart by age
Start with the puppy's age in weeks and current weight, then compare the result with the size chart that best matches the likely adult frame. If you know the breed, use the breed page as the stronger context because adult range and body shape can vary inside the same size class.
The goal is not to force your puppy onto the highest line. A useful chart shows whether the trend is moving steadily, flattening unexpectedly, or jumping after a change in food, treats, illness, or activity.
Best check-in setup
Use the same scale, the same unit, and a similar time of day. Add a short note about appetite, stool, activity, and treats so the next weigh-in has context.
Puppy growth checkpoints by size
Dogs grow at different speeds because adult size changes the timeline. WALTHAM puppy growth charts group dogs by expected adult size and sex, which is why a single all-breed line can be misleading.
| Likely adult size | What usually changes fastest | Helpful next page |
|---|---|---|
| Toy | Early weight shifts are small but meaningful, so weekly checks matter. | Toy dog weight chart |
| Small | Growth often settles earlier, but treats can still move the line quickly. | Small dog weight chart |
| Medium | Activity and food routine can make one weigh-in noisy. | Medium dog weight chart |
| Large | Steady growth is safer than rushing weight gain. | Large dog weight chart |
| Giant | The growth window is longer, so patience and repeat checks matter. | Giant dog weight chart |
What to track at each age
At 8 to 12 weeks, focus on getting a reliable baseline. At 3 to 5 months, most puppies are changing quickly, so short re-check intervals are useful. At 6 to 9 months, small dogs may be settling while larger dogs still have a long way to go.
From 9 to 18 months, compare the scale with body condition. Many dogs slow in height before they finish filling out. Large and giant puppies especially need steady tracking because frame, muscle, and body condition do not mature at the same speed.
- Age: record age in weeks when possible.
- Weight: use kg or lb consistently.
- Body condition: note ribs, waist, and tuck.
- Routine: note food, treats, illness, and activity changes.
When the chart needs more context
A chart is less reliable when age is estimated, the puppy is mixed-breed, the parents' size is unknown, or a recent illness changed appetite or hydration. In those cases, look for direction over several measurements instead of treating one result as final.
Use the puppy weight calculator for a live estimate, then compare that result with the relevant size chart and any breed page you can use. For mixed breeds, choose the closest adult-size expectation and update it as the trend becomes clearer.