Free · no sign-up · no API key

Embed the US Tariff Calculator

Give your readers a free 2026 US import-duty and landed-cost calculator right inside your blog, guide or store. Add it with one copy-paste.

1 · Copy this code

<div id="gt-tariff-widget"></div>
<script src="https://contentforge-press.github.io/groundtruth-calculator/widget.js" async></script>

2 · Paste it where you want the calculator

Paste into a blog post, a page, or a sidebar / HTML widget.
Works in WordPress (Custom HTML block), Shopify, Webflow, Ghost and most site builders.
Responsive by default; it fills the width of its container.
Optional: set a fixed width with data-width="420px" on the script tag.

Live preview

What it costs

The widget is free to embed as long as the small “calculator by GroundTruth” attribution stays visible. If you need a white-label (no attribution) version or higher API limits, see the GroundTruth API plans.