Free to embed
Embed a free TDEE & macro calculator on your site
Give your readers an instant, no-signup calorie and macro calculator. One line of HTML, fully responsive, always up to date — free to use with a simple link back.
Add it in 30 seconds
- Copy the embed code on the right.
- Paste it into any page, post, or template where you want the calculator to appear.
- That's it — it auto-resizes to fit your layout and works on mobile.
Embed code
Paste this wherever you want the calculator. The small script makes the calculator resize itself as results expand:
<iframe src="https://officialnutribalance.app/embed/calorie-calculator/"
width="100%" height="640" loading="lazy"
style="border:1px solid #e5e7eb;border-radius:16px;max-width:640px"
title="Free TDEE & Macro Calculator by NutriBalance"></iframe>
<p style="font-size:13px;color:#5b626b">Powered by
<a href="https://officialnutribalance.app/calorie-calculator/">NutriBalance Calorie & Macro Calculator</a></p>
<script>window.addEventListener("message",function(e){if(e.data&&e.data.nbCalc&&e.data.height){var f=document.querySelector('iframe[src*="officialnutribalance.app/embed"]');if(f){f.style.height=e.data.height+"px";}}});</script>
Live preview
Usage & licence
- Free to use on personal and commercial sites, blogs, and apps.
- Keep the attribution link to NutriBalance visible (it's included in the snippet) — that's the only condition.
- Don't modify the calculator's logic or remove the "Powered by NutriBalance" credit.
- The calculator is provided for general educational use; it's an estimate, not medical advice.
- Questions or want a different calculator embedded? Email thenutritrackerapp@gmail.com.
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