Add a useful engineering calculator to your documentation, workshop page or logistics guide. No API key, account or fee. The frame uses the same calculation engine as the full ValiCalc tool.
Responsive setup & attribution
Copy a snippet below into a page that accepts iframes. Set width to 100% and allow about 1100 px height; increase height for repeatable rows or expanded results. The frame scrolls when content is taller. Keep its title for accessibility and keep the visible “Powered by ValiCalc” canonical backlink.
Frames have no ads, analytics or main navigation. They require a live connection and are not offline copies. Their calculations retain the full method’s scope and limitations. No automatic iframe resizing or publisher scripts are required.
Available tools (10)
Voltage Drop Calculator
Estimate DC or AC resistive voltage drop, minimum conductor size or maximum cable length with copper/aluminum, AWG/mm² and conductor temperature.
<iframe src="https://www.valicalc.com/embed/torque-from-power-rpm-calculator" title="Torque from Power and RPM Calculator" width="100%" height="1100" loading="lazy" style="border:0;max-width:100%"></iframe>
Belt Length Calculator
Calculate approximate open-belt length from pulley diameters and center distance, with metric and imperial results.
Check mobile layout, keyboard access and sufficient frame height. Use HTTPS. Never present a result as code compliance or an approved design; refer readers to the full calculator’s assumptions. If your platform blocks iframes, link directly to the canonical calculator.