Estimate adult weight
Start with age and current weight, then refine the estimate with breed, sex, and parent size when known.
Start estimateDog & Puppy Weight Calculator
Estimate your puppy's adult weight using age, current weight, breed, and parent size. Compare the result with breed guides and size charts in one place.
Choose your next step
Browse breed guides
See breed-specific adult weight ranges, growth patterns, and size expectations for popular dog breeds.
Open breed guidesUse size charts
Compare your puppy with toy, small, medium, large, and giant dog size ranges by age.
Open size chartsPuppy Weight Calculator
Estimate your puppy's adult weight in one place
Enter the basics first, then add breed and parent details to get a more useful adult weight range.
Planning tool only - not veterinary advice.
Puppy Weight Calculator
Get an estimated adult weight range, confidence level, and a result you can save or share.
Breed photos
How to use the estimate
Start with basics
Step 1Enter age and current weight. Choose weeks or months and lb or kg, then use the most accurate numbers you have.
Add more detail
Step 2Refine with breed and parent size. Add breed, sex, and parent weights when known to narrow the likely adult range.
Check again later
Step 3Review and track progress. Save the result and rerun the calculator as your puppy grows to compare progress over time.
When owners usually recheck weight
Common times to run the puppy weight calculator again during growth.
First weigh-in
Start with your puppy's first reliable home or vet weight to set a baseline.
Growth spurt check
Recheck after a sudden jump in size or appetite to keep expectations realistic.
Compare with chart
Use the result beside a puppy growth chart or breed guide for more context.
Save results
Keep each estimate so you can compare changes when you update the inputs.
Popular puppy weight guides by breed
Choose a breed to prefill the calculator or open a guide with breed-specific size context.
Ready to check again?
Get your puppy's next weight estimate
Start with age and current weight, then refine the result with breed and size references. Use it as a planning guide, and ask your vet about health or growth concerns.