Puppy Weight Calculator
Predict how big your puppy will get. Enter their breed, age, and current weight to see their estimated adult size and growth milestones.
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Puppy Details
Enter your puppy's current age and weight
Tip: Weigh your puppy on a scale for best accuracy
400+ Breeds
Comprehensive breed database with size-specific growth curves
Growth Charts
See your puppy's projected growth curve and milestones
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Frequently Asked Questions
How can I predict my puppy's adult weight?
You can predict your puppy's adult weight using their current weight, age, and breed size category. The most accurate predictions come when puppies are 12-16 weeks or older. Our calculator uses scientifically-based growth multipliers that vary by size category.
When do puppies stop growing?
Growth timing varies significantly by breed size. Extra small and small breeds (under 10 kg) typically reach adult weight around 10-12 months. Medium breeds finish growing at 12-15 months. Large breeds take 15-18 months, while giant breeds may continue growing until 18-24 months of age.
How accurate are puppy weight calculators?
Puppy weight calculators provide estimates based on typical growth patterns. Accuracy improves when the puppy is at least 12-16 weeks old. Individual factors like genetics, nutrition, spay/neuter timing, and overall health can affect final adult weight by 10-20%.
Do male and female puppies grow differently?
Yes, male dogs are typically 10-20% larger than females of the same breed. Males also tend to take slightly longer to reach their full adult size. For the most accurate prediction, consider your puppy's gender when interpreting results.
What if I don't know my puppy's breed?
If you have a mixed breed or don't know the exact breed, use the "Select by Size" option. Estimate your puppy's expected adult size based on their paw size, parent size (if known), or vet's assessment. Most mixed breeds fit into one of five size categories.
Understanding Puppy Growth Rates by Size
Under 4 kg
Adult by ~10 months
4-10 kg
Adult by ~12 months
10-25 kg
Adult by ~14 months
25-45 kg
Adult by ~18 months
Over 45 kg
Adult by ~24 months