Add the puppy weight calculator to your website

Free for breeders, vet clinics, trainers and dog blogs. Your visitors enter their puppy’s age and weight and get an estimated adult weight and growth chart, right on your page.

Breed

Colours

Embed code

<!-- PupSize puppy weight calculator -->
<iframe src="https://pupsize.org/embed/" title="Puppy weight calculator" loading="lazy" data-pupsize style="width:100%;max-width:640px;height:760px;border:0;display:block"></iframe>
<p style="font-size:14px;margin:6px 0 0">Puppy weight calculator by <a href="https://pupsize.org/">PupSize</a></p>
<script>(function(){if(window.__pupsize)return;window.__pupsize=1;window.addEventListener('message',function(e){if(e.origin!=='https://pupsize.org'||!e.data||e.data.type!=='pupsize:height')return;var f=document.querySelectorAll('iframe[data-pupsize]');for(var i=0;i<f.length;i++){if(f[i].contentWindow===e.source){f[i].style.height=Math.ceil(e.data.height)+'px';}}});})();</script>

Paste it into your page’s HTML (in WordPress, use a Custom HTML block).

Preview

Why breeders and vets use it

Answers the question puppy families ask most: “how big will my puppy get?”
Pick a breed to pre-select it, so families only enter age and weight.
Works on phones, with pounds or kilograms, and with mixed breeds using the parents’ weights.
Free, with no sign-up and no cookies.

Good to know

The calculator resizes itself to fit. If your site strips scripts, it still works at a fixed height.
Please keep the short “by PupSize” credit under the calculator. It’s how we keep the tool free.
Results are estimates, not veterinary advice. See how the estimates work.

Questions, or want a breed added? Email hello@pupsize.org.