๐พ Pets
Puppy Weight Predictor
Most puppies reach roughly half their adult weight around four to five months, which is the basis of the common doubling rule. Accuracy improves if you know the parents, since genetics set the ceiling.
How it works
Current weight
Age in weeks
Expected size class
Predicted adult weight
Weight at 6 months
Weight at 12 months
Typical definition of this class
Frequently asked questions
How do I use the Puppy Weight Predictor?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.