Widgets

Free peptide calculators for your site

Paste one block of code and your readers get exact syringe units without leaving your page. Free, no signup, and it keeps a small credit line under the frame.

Reconstitution calculator

Vial, water and dose in; syringe units out, drawn on the real barrel. Pick a peptide to open it with that peptide's common vials and reported dose ranges.

Peptide

Theme

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Width

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Auto-resizeTurn off if your site strips scripts.

<iframe src="https://truepeptidesource.com/embed/reconstitution" title="Peptide reconstitution calculator" width="100%" height="940" style="border:0;max-width:720px;width:100%" loading="lazy"></iframe>
<p style="font-size:14px;margin:8px 0 0">Peptide calculator by <a href="https://truepeptidesource.com/calculators/reconstitution">TruePeptideSource</a></p>
<script src="https://truepeptidesource.com/embed/v1.js" async></script>

Paste it in a Custom HTML block (WordPress) or an HTML embed (Squarespace, Webflow, Ghost).

Preview

What you get

Math computed in code, the same as on our site, with the working shown under every answer.
Presets for 60+ peptides and the GLP-1 medicines: common vials, water and reported dose ranges, each labelled by where it came from.
The syringe drawn to the barrel your readers own: U-100 1 mL, 0.5 mL, 0.3 mL and U-40.
Light, dark or match the visitor. Transparent around the cards, so it sits on your page color.
Works on phones: the answer stays pinned on screen while people type.
No signup, no ads, no cookies, no third-party trackers inside the frame.

How to paste it

WordPress: Add a Custom HTML block where the calculator should go and paste the code. On WordPress.com plans that strip scripts, turn auto-resize off.
Squarespace: Add a Code block, paste, and leave Display Source off.
Webflow: Drag in an Embed element and paste. Publish to see it; the designer does not run embeds.
Ghost: Type /html in the editor for an HTML card and paste.
Wix: Add Embed Code, then Embed HTML, choose Code and paste. Wix wraps it in its own frame, so give the box the height in the code.
Newsletters: Email cannot run a calculator. Use the worked-example image (any calculator link ending in /og?... draws its own numbers) and link it to the calculator.

The rules, in three lines

Keep the credit line and its link.
Do not change the numbers the widget shows.
Do not frame it so it looks like we endorse you or what you sell.

The full wording is in our terms.