ABV Widget
Alcohol by volume from original and final gravity, with attenuation.
Frequently asked questions
What does the resizer script do?
The iframe reports its content height to your page, and a tiny script adjusts the frame so it always fits - no scrollbars, no manual pixel tuning, even if the widget layout changes on a narrow screen.
Does the widget track my visitors?
No. The calculator runs entirely in the visitor's browser - no cookies, no accounts, no server calls. The only outbound link is the Powered by credit.
Can I use it in WordPress?
Yes. Paste the embed code into a Custom HTML block in the block editor. The script tag goes in the same block, directly under the iframe.
More widgets
Every widget carries a small "Powered by getFermentCalc" link at the bottom. It opens in a new tab, so your visitors never leave your page.