Is the peptide calculator widget free?

Yes. The widget is free to embed. There is no signup, no script to maintain, and no cost. We only ask that you keep the small attribution link to mixmypep.

Does the widget collect any data?

No. The calculator runs entirely in the visitor's browser. Values are not sent anywhere and nothing is stored.

Free Peptide Calculator Widget

Q: How do I add the peptide calculator to my website?

Copy the embed snippet on this page and paste it into your site's HTML where you want the calculator to appear. It loads in an iframe, so it works on any platform that allows custom HTML, including WordPress, Wix, Squarespace, Ghost, and plain HTML sites.

Q: Can I change the widget height?

Yes, adjust the height value in the iframe tag. The widget also posts its content height to the parent page, so you can auto-size it with a small script if you prefer.

Add a clean peptide reconstitution calculator to your own site with one snippet. It runs entirely in the visitor's browser, needs no signup, and works on WordPress, Wix, Squarespace, Ghost, or plain HTML.

Live preview

Grab the code

Paste this where you want the calculator to appear:

<iframe src="https://mixmypep.com/embed.html" width="100%" height="700"
  style="border:0;max-width:480px" loading="lazy"
  title="Peptide Reconstitution Calculator"></iframe>
<p style="font:14px system-ui,sans-serif;color:#516159">Free
  <a href="https://mixmypep.com/">peptide reconstitution calculator</a> by mixmypep</p>

Copied to clipboard

How it works

The snippet loads the calculator in an iframe, so it stays up to date automatically — you never have to re-paste it.
It's self-contained and private: all math runs in the browser, and no visitor data is collected.
Resize it by changing the height value. The widget also posts its height to the parent page, so you can auto-size it with a small script if you like.
Please keep the small attribution link — it's how the widget stays free.

Optional: auto-fit the height

The fixed height above suits most pages. If you'd like the frame to size itself exactly (handy on narrow mobile layouts), add this once anywhere on the page — the widget reports its height and this resizes the frame to match:

<script>
addEventListener("message", function (e) {
  if (e.data && e.data.mixmypepHeight) {
    var f = document.querySelector('iframe[src*="mixmypep.com/embed"]');
    if (f) f.style.height = e.data.mixmypepHeight + "px";
  }
});
</script>

Prefer the full calculator?

The embedded widget covers reconstitution and dosing. For half-life, intranasal sprays, supplies planning, and per-compound guides, send people to the full calculator or the complete list of calculators.

Frequently asked questions

How do I add the peptide calculator to my website?

Copy the snippet above and paste it into your site's HTML where you want the calculator to appear. Because it loads in an iframe, it works on any platform that allows custom HTML — WordPress, Wix, Squarespace, Ghost, or plain HTML.

Is the widget free?

Yes — free to embed, no signup, no script to maintain. We only ask that you keep the small attribution link to mixmypep.

Does it collect any data?

No. The calculator runs entirely in the visitor's browser; values are never sent anywhere and nothing is stored.

Can I change the height?

Yes — adjust the height in the iframe tag. The widget also posts its content height to the parent page for optional auto-sizing.