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Embed Free Calculators on Your Site

Any of our 500 calculators can be embedded on your website, blog, or app with one line of HTML. Free forever. No registration required.

How to Embed

Find your calculator on nnng.com and click the Embed button below the result.

Copy the iframe code that appears. Each calculator has a unique embed URL.

Paste it anywhere in your HTML — your article, sidebar, landing page, or app. Works in WordPress, Webflow, Squarespace, Ghost, and any platform that accepts HTML embeds.

Example — Peptide Reconstitution Calculator

<iframe src="https://nnng.com/peptide-calculator/?embed=1"
  width="100%" height="680" frameborder="0"
  style="border-radius:12px;border:1px solid #2a2a3a;"
  title="Peptide Reconstitution Calculator"></iframe>

Example — Mortgage Calculator

<iframe src="https://nnng.com/mortgage-calculator/?embed=1"
  width="100%" height="560" frameborder="0"
  style="border-radius:12px;border:1px solid #2a2a3a;"
  title="Mortgage Calculator"></iframe>

Build Your Own Embed URL

Any calculator URL + ?embed=1 creates an embedded version with no navigation or footer.

https://nnng.com/[calculator-slug]/?embed=1

Replace [calculator-slug] with any calculator URL — e.g. bmi-calculator, tip-calculator, glp1-titration-tracker

Terms of Embedding

✅ Free to embed on any website, blog, or app
✅ No registration or API key required
✅ Attribution link ("Powered by nnng.com") appreciated but not required
✅ Commercial sites welcome
❌ Do not remove "nnng.com" branding from within the calculator
❌ Do not wrap in a frame that obscures the source URL