Concrete Calculator for Your Site
Free embed — no signup, no API key. The loader places a dofollow “Powered by ezcalcs” link in your page DOM (outside the iframe) so the attribution actually counts.
Pick a shape, enter dimensions, and Calculate — volume, bags, weight, and optional cost show here.
Recommended snippet
<!-- ezcalcs embed: concrete-calculator — paste anywhere in the body --> <script async src="https://ezcalcs.net/embed.js" data-calc="concrete-calculator" data-theme="light" data-width="100%" data-height="640" ></script>
Static fallback (no JavaScript)
<!-- ezcalcs embed (static): concrete-calculator --> <iframe src="https://ezcalcs.net/embed/concrete-calculator?bare=1&theme=light" title="ezcalcs concrete-calculator" loading="lazy" referrerpolicy="strict-origin-when-cross-origin" style="width:100%;max-width:720px;height:640px;border:0;border-radius:12px;" ></iframe> <p style="font:12px/1.4 system-ui,sans-serif;margin:8px 0 0;color:#64748b;"> Powered by <a href="https://ezcalcs.net/calculators/concrete-calculator" style="color:#0f766e;font-weight:600;" target="_blank" rel="noopener">ezcalcs</a> </p>