Predicted Adult Weight for a 10 kg Puppy at 20 Weeks
Estimate how heavy a large-breed puppy weighing 10 kg at 20 weeks will be when fully grown.
How to use this tool
- Weigh your puppy accurately.
- Enter their exact age in weeks.
- Select the expected adult breed size.
- The predicted adult weight is shown below — it's an estimate.
Large and giant breed puppies take longer to mature — predict their adult size early to plan nutrition and space requirements.
Frequently asked questions
- How accurate is a puppy weight prediction?
- Predictions from weight-at-age formulas are estimates with ±15–20% error. Genetics, nutrition, and health all influence final adult size.
- When do puppies reach their adult weight?
- Small breeds reach adult weight by 9–12 months; medium breeds by 12–15 months; large and giant breeds can continue growing until 18–24 months.