Embed the charge time calculator

Why put it on your page

If you write about home charging, the question your reader has at that moment is how many hours it takes. A paragraph answers it for one car. This answers it for theirs. The widget does the arithmetic on their own numbers, in your page, so they stop looking for a calculator somewhere else and finish reading what you wrote. It costs you one line of HTML and it keeps working without you, because the arithmetic inside it is the same arithmetic the full calculator on this site runs, and that is maintained here.

There is one condition and it is the whole price: the credit link in the widget footer stays visible. That is the trade. You get a working tool, we get the link.

The snippet

Paste this wherever you want the calculator to appear.

<iframe src="https://evchargerindex.com/embed/charge-time/" width="100%" height="380" style="border:1px solid #ccc;border-radius:8px" title="EV charge time calculator" loading="lazy"></iframe>

It is a plain iframe, so it works in any content management system that lets you paste HTML, including a WordPress custom HTML block. Nothing else is needed: no script tag, no library, no key.

Sizing it

The width is set to 100 percent, so it takes whatever column you give it and stays readable down to a phone. The height of 380 pixels fits the widget at typical desktop and mobile widths. If your theme uses a narrow column and the footer line wraps, raise the height to 420 and it will settle.

The attribution line

The credit link is already inside the widget, so pasting the snippet is enough on its own. If you would rather also credit it in your own text, or you are quoting a number from it in an article, this is the line to use:

Charge time calculator by EV Charger Index (https://evchargerindex.com/tools/charge-time/)

What it does and does not do

The widget takes a battery capacity in kWh and a charger output in kW and returns the hours from empty to full, plus a typical real session that adds about 10 percent for the taper near the top of the pack. It uses the same arithmetic as the full calculator on this site, so the two can never disagree.

It sets no cookies, loads no third party scripts, and records nothing about your readers. There is no analytics call in it, because this site does not run one anywhere. The full version, with vehicle presets and every charger in the database, is on thecharge time calculator, and the method behind both is on the methodology page.

If you take it, you are welcome to it and you owe us nothing beyond the link. If something about it breaks on your page, the contact route is on the about page.