Embed the electricity cost calculator

Add a free, working watts-to-cost calculator to your own site. No sign-up, no tracking, just one line of HTML.

Preview

Copy this code

<iframe src="https://wattcost.pages.dev/embed/calculator/" width="100%" height="420" style="border:0;max-width:640px" loading="lazy" title="Electricity cost calculator"></iframe>
<p><a href="https://wattcost.pages.dev/calculator/">Electricity cost calculator</a> by WattCost</p>

Please keep the credit line under the widget. It is how other people find the tool.

Preset the widget

Add parameters to the iframe URL to open it with values filled in: ?watts=1500&hours=6&region=uk. Region codes: us, us-ca, us-tx, us-ny, us-fl, ca, uk, de, fr, au, in.