How do I add the calculator to WordPress, Webflow, Squarespace or Ghost?

Copy Option 1 and paste it into a custom HTML block (WordPress), an Embed element (Webflow), a Code block (Squarespace) or an HTML card (Ghost). If the platform removes the script, use Option 2, the plain iframe.

Will it slow my page down?

It loads lazily, one frame, no cookies and no third-party tracking scripts. The loader file is under 3 KB.

Can I change how it looks?

Yes: light, dark or matching the reader's device, a button colour, a maximum width, and a preset vial, water and starting dose. Those are the options in the builder above.

Do I have to keep the credit?

Yes. The link under the calculator is the price of using it. Removing it ends the licence to embed.

Does it give medical advice?

No. It converts a vial strength, a water volume and a dose into a syringe mark. It does not say what anyone should take. The disclaimer travels with the calculator.

Embed the peptide calculator on your site

Free for blogs, clinics, coaches and newsletters. Pick a calculator, preset your vial, copy one snippet, keep the credit link.

Reviewed 3 September 2026
27 compounds
Formula on every page
No ads, no vendor links

Build your embed

Pick a calculator, optionally preset the vial, water and dose your readers use most, copy the code. The preview is the real thing.

Option 1: script (recommended)

Resizes itself to fit the calculator. The link inside the div is the credit and also what shows if scripts are blocked.

Option 2: plain iframe, for platforms that strip scripts

Works anywhere that allows an HTML or embed block. Fixed height, so give it about 700 px. Keep the line under it.

Preview

Who it is for

Coaches and clinics that hand clients a vial-maths tool: preset the vial and water you stock or recommend and the starting numbers are already right.
Bloggers and newsletter authors writing reconstitution or dosing guides: the reader checks their own vial without leaving your page.
Forum and community moderators: one pinned post with a working calculator ends most of the repeat "how many units" threads.

What your readers see

The calculator only: vial strength, water, dose, syringe, and the result with the syringe mark, doses per vial and the vial lifetime. Our header, footer and sign-up forms are hidden in an embed. A one-line credit sits under it and links to the full calculator. Readers can copy a link to their exact calculation, and everything runs in their browser.

Terms

Free for any site, newsletter or community that keeps the credit link. Do not present the numbers as medical advice: the tool converts units and volumes, it does not tell anyone what to take. We count embeds by page-view tag (the address of the page that shows the calculator); there are no cookies and no reader accounts. If you would rather have a plain link than an iframe, link to any page here with normal anchor text.

A compound that is missing, or a layout you need: hello@peptulator.com.

Peptide calculator by Peptulator Free, no signup. Research use only, not medical advice.

Free downloadThe Protocol Pack

25 printable pages: dosing cards for the twelve most-used compounds at three water volumes, titration planners, a vial log, and five pages on what to do when it has already gone wrong.

Common questions

How do I add the calculator to WordPress, Webflow, Squarespace or Ghost?: Copy Option 1 and paste it into a custom HTML block (WordPress), an Embed element (Webflow), a Code block (Squarespace) or an HTML card (Ghost). If the platform removes the script, use Option 2, the plain iframe.
Will it slow my page down?: It loads lazily, one frame, no cookies and no third-party tracking scripts. The loader file is under 3 KB.
Can I change how it looks?: Yes: light, dark or matching the reader's device, a button colour, a maximum width, and a preset vial, water and starting dose. Those are the options in the builder above.
Do I have to keep the credit?: Yes. The link under the calculator is the price of using it. Removing it ends the licence to embed.
Does it give medical advice?: No. It converts a vial strength, a water volume and a dose into a syringe mark. It does not say what anyone should take. The disclaimer travels with the calculator.

MethodologyEvery formula and rounding rule, so you can check the maths Read a syringeU-100 vs U-40, and the 2.5x error Build a full protocolThe stack builder at Peptide Bureau, about two minutes

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Embed the calculator (this page)
Trusted resources Dosing safety, reconstitution and evidence pages we link to

Every one of the 27 compound calculators, charts and tools: the full list.

Before you use these numbers This is a unit-conversion tool. It turns a vial strength and a water volume into a concentration, a draw volume and a syringe mark. It does not tell you what to take, whether to take it, or whether a compound is safe for you. Most compounds listed are sold for laboratory research and are not approved for human use. Nothing here is medical advice. Dosing decisions belong with a licensed clinician who knows your history. Always check the strength printed on your own vial rather than trusting a preset.