Add a free, live Gear Ratio Calculator to your website in under a minute. It runs entirely in your visitors’ browsers — no sign-up, no accounts, no maintenance on your end. Perfect for automotive blogs, 4×4 and Jeep club pages, bike shops, karting sites, and classroom resource pages.
Live preview
Here is the calculator exactly as it will appear on your site:
Copy-paste embed code
Copy the snippet below and paste it into your page where you want the calculator to appear:
<iframe src="https://gear-ratio-calculator.com/wp-content/plugins/gear-tools/embed-gear-ratio.html" width="100%" height="560" style="border:1px solid #ddd;border-radius:8px;max-width:560px" loading="lazy" title="Gear Ratio Calculator"></iframe>How to add it
- WordPress: edit the page or post, add a Custom HTML block (Gutenberg) or paste the code into the Text tab of the classic editor, then update. Done.
- Any HTML page: paste the snippet into your page source wherever the calculator should sit. It is fully responsive and works from 320 px wide up.
- Height: the 560 px height fits the calculator with no internal scrolling. If you restyle it or change fonts on your site, you can adjust the height value slightly up or down.
The fine print
The widget includes a small “Powered by Gear Ratio Calculator” credit line at the bottom — please keep it in place. That’s the only thing we ask in return for the free tool.
Want the full version with more features (RPM/speed solver, multi-stage gear trains, bicycle gears, per-gear RPM tables, and before/after setup comparison)? That’s on our homepage: Gear Ratio Calculator.