For breeders

A free puppy size predictor for your website

“How big will this puppy get?” is the question every puppy family asks. Add this small calculator to your puppies, FAQ or going-home page and families can work it out themselves, from the puppy's age and weight or from the parents' weights.

What you get

Works on any website builder that accepts HTML: Wix, Squarespace, WordPress, GoDaddy and others.
No cookies, no tracking, no ads, nothing to sign up for. You don't need to change your cookie notice.
Pounds or kilograms, F1, F1b and multigen.
Always shows a range rather than a single number, with a note that previous litters from the same pairing are the best guide. Your word stays the final one.
Free, and it stays free.

Preview

How to add it

Copy the code below.
In your website editor, add an “Embed”, “HTML” or “Custom code” block where you want the calculator.
Paste the code and publish. That's it.

<iframe src="https://www.happiestdoodles.com/embed/size-predictor" title="Doodle puppy size predictor" width="100%" height="560" style="border:0;max-width:520px;display:block" loading="lazy" id="hd-size-predictor"></iframe>
<p style="font-size:13px;margin:6px 0 0">Doodle puppy size predictor by <a href="https://www.happiestdoodles.com/tools/adult-size-predictor">HappiestDoodles</a></p>
<script>(function(){var o='https://www.happiestdoodles.com',f=document.getElementById('hd-size-predictor');if(!f)return;f.addEventListener('load',function(){try{f.contentWindow.postMessage({hdPage:location.href},o);}catch(e){}});window.addEventListener('message',function(e){if(e.origin===o&&e.data&&e.data.hdEmbed==='size-predictor')f.style.height=(e.data.height+4)+'px';});})();</script>

The short credit line under the calculator links back to us; please keep it. If your site builder strips the small script at the end, the calculator still works at a fixed height. Questions or a different size you need? Email info@happiestdoodles.com.

Want to try the full version first? It's on our adult size predictor page.