About PuppySize

PuppySize is a free tool that estimates how big a puppy will get. We built it because the question "how big will my puppy get?" deserves a clear, honest answer: a realistic range grounded in real veterinary growth data, not a single false-precise number or a wall of ads.

Our principles

• Ranges, not false precision. Growth is variable; we say so, and show a band rather than one figure.
• Honest about uncertainty. We tell you when an estimate is rough; early ages and mixed breeds especially.
• Transparent sourcing. We cite real studies and standards and never invent veterinary credentials or reviewer bylines.

How it's made

Estimates are generated from published veterinary growth curves and breed standards; see how we calculate and our full sources. PuppySize provides estimates for informational purposes and is not a substitute for veterinary advice.

Contact

Found an error or have a breed you'd like added? Get in touch.