Free HTML Widget

Embed a Free Calculator on Your Website or Blog

Boost user engagement with a fast, responsive, and 100% private financial calculator embedded with a single line of clean HTML code.

1. Select Calculator

2. Select Size & Type

Interactive Live Preview

340 px

3. Copy HTML Embed Code (1 line)

<iframe src="https://laskuri.co/embed/alv-laskuri?versio=mini" width="100%" height="340" frameborder="0" style="border:1px solid #E3E2DE;border-radius:16px;max-width:680px;width:100%;" title="VAT Calculator (25.5% & 13.5%) - Laskuri.co"></iframe>

Why Choose Laskuri.co Widgets?

100% Free & Lightweight

No sign-up, no API keys, and zero tracking scripts slowing down your page.

Completely Private

Calculations run 100% client-side in the user's browser without saving inputs.

Fully Responsive

Seamlessly fits phone, tablet, and desktop viewports automatically.

Installation Guide for Popular Platforms

WordPress (Gutenberg)

Add a 'Custom HTML' block to your page or post and paste the code.

WordPress (Elementor)

Drag an 'HTML' widget into your container and paste the embed code.

Webflow

Add an 'Embed' component and paste the HTML snippet.

Shopify / Squarespace / Wix

Add a 'Custom Liquid' or 'Code Block' section and paste the snippet.

Frequently Asked Questions

Is it completely free to embed this calculator?

Yes, embedding our calculators is 100% free with no sign-up or API key required.

Does it work with WordPress and other website builders?

Yes. It uses a standard HTML iframe snippet compatible with WordPress, Webflow, Squarespace, Wix, Shopify, and custom HTML pages.

Does the widget collect or store user data?

Never. All calculations execute client-side directly within the user's browser.

Is the widget mobile-friendly?

Yes. The iframe width is set to 100% with a max-width of 680px to fit all mobile, tablet, and desktop screens.