How to add a calculator to Wix
Wix has a dedicated element for pasted HTML: Embed HTML. Drop it where you want the calculator, paste the iframe, and resize it to fit. There's no app to add from the Wix App Market.
Step by step
Copy the calculator's embed code
Choose the tool you want on your Wix site and copy the one-line iframe snippet from its embed section.
Add the Embed HTML element
In the Wix Editor, click Add Elements → Embed Code → Embed HTML, then drag it onto the page.
Paste the code
Click Enter Code, paste the iframe snippet into the HTML box, and click Apply.
Resize and publish
Drag the element's handles to size it so the calculator fits, then click Publish.
What it looks like embedded
Good tools to embed on Wix
Good to know
- Choose Embed HTML, not Embed a Widget — the widget option expects a URL, while Embed HTML takes the full snippet.
- Give the element enough height (around 600px) or the calculator's lower controls get clipped.
- The same element works in Wix Studio — it's under Embed Code in the Add panel.
Frequently asked questions
Quick answers before you start.
Do I need a Wix app for a calculator?
No. The Embed HTML element is built into Wix and accepts the iframe snippet directly, so you can skip the App Market entirely.
What's the difference between Embed HTML and Embed a Widget?
Embed a Widget imports an external page by URL or code. Embed HTML lets you paste raw HTML — which is what the Plainso snippet is — so use Embed HTML.
Why is part of my calculator hidden in Wix?
The Embed element is a fixed-size box, so if it's shorter than the calculator, the bottom gets clipped. Drag its bottom handle down to give it more height.